HWIs

Before reading on I would like to say, for some people, figuring out these numbers is half the fun. So if you would like to do the work yourself, do not read the HWI-page. No-one is stopping you from doing it yourself. In fact, I will just applaud you for it.

So here are the infamous HWIs. Let me just say if you come here to just download these numbers and use some different method to calculate and it does not work and you end up complaining, then I will just laugh at you ;>
Also, do not be scared away by this list. It is really simple to use.

Here is the list of HWIs as image with an explanation of all the terms below, you can download it as table in Excel and OpenOffice format here!!! (download at your own risk!)



(Click image for enlarged view)

So we see three sets of columns here. The first set is for Tomahawk, the second for Backspin and the third of elevation adjustments. I will only explain one of the first two since they are the same.

Starting from left:

Pin

(Pin = Hole by the way)

NB!!! PLEASE NOTE, PIN DISTANCE IS NOT EQUAL TO THE DISTANCE YOU NEED TO HIT THE BALL TO GET TO THE HOLE BECAUSE ELEVATION IS IGNORED IN HWI SELECTION. GETTING YOUR FINAL POWER IS PIN DISTANCE +/- WIND +/- BALL EFFECT +/- ELEVATION !!!

The method of calculating I use here is called “pin method” (There are other methods with the same or very similar formula, but I am not very practiced in them, so no point in trying to explain them). This means, we take the HWI that represents that pin. NB: Only WIND and BALL EFFECT (98%, 95%, 90%, etc) will change the pin distance. When doing your shot, there will be distance to the hole displayed on your screen. For example:

The pin is 240yards away, the elevation 0, Ball effect is 0 (meaning 100%) and you have a cross wind (meaning the pin distance will not change, more about that later in thorough examples) and you want to TOMAHAWK.
You do this: take the list, look at the “pin column” and go to 240. In HWI columns (third column that is!) you will see the HWI for that pin which is 3.34 Powerbars in this example (explanation of powerbars just below). Take it and put it into the formula. Easy, no? Obviously we have not calculated anything yet…

Power

Pretty self-explanatory. The Power tells you how far the shot will go. This is not 100% correct if you have paid attention. Because the maximum for 250y drive Tomahawk with no wind effects is 264.7yards. This list is just a reference for you. They are not 100% accurate values. You can see some values that are higher than 100% club power. This is because the method we use here takes the HWI for the Pin distance. We will sometimes get pins that are 270yards away for example, but circumstances such as negative elevation and tail will allow us to reach the hole anyway even though the maximum for 250y drive tomahawk is only 264.7y. The same goes for pins that are lower than the actual minimum. E.g. 195 pin with +8m elevation. 195y is not in your power range, but with +8m Elevation it is.

Moving on. What is an HWI?

HWI

As mentioned before, HWI stands for Horizontal Wind Influence. It is the Horizontal (90 degree angle) effect on the ball in 1m Wind. For our example above, the HWI was 3.34 Powerbars. Now lets say the wind is 6m at a 90 degree angle. The HWI will still be 3.34 Powebars, but as a result if we were to calculate it out, it would be 6 TIMES 3.34 Powerbars (because the Sin of 90 is 1, so 1x 6 x 3.34 Powerbars) which is 20.04 Powerbars or just 20.0 Powerbars (we refer to Powerbars as “PB”).
How do we see powerbars on the screen? Like this:



(Click image for enlarged view)

50% of your the entire bar is considered 0, so when aiming your shot you centre the the 50% line on the hole, but more about that later. Each 10% step to the left/right is 1 Powerbar. So the maximum you can move at once using the bar is 5 to each side (Well, as you can see, 6 to the left, but I do not use that). You do this by hovering with the bottom part of your mouse cursor over the bar selecting a distance and the tip of the cursor on the green. If you then click, it will move the selected distance. How this is done can be seen in pretty much any video on the Video’s page.

Slope

I am only going to explain how to use the slope numbers here and not go into too much detail. When we do not get a flat ball slope, we can see line breaks on the ball. Depending on the distance we multiply the number of lines with the Slope modifier. As mentioned in the Formula section already, it looks liked this:
(Number of Breaks x Slope modifier x HWI)

Taking the example of 240y again. Lets say we have 2 breaks, then it looks like this:

(2 x 0.25 x 3.34) which is PLUS or MINUS 1.67pb to your aim, depending whether the slope is leaning with or against the wind. The slope modifier increases as the distance increase. Actual calculation examples with slopes can be found here.

Elevation Mutliplier

NB !!!!MOST IMPORTANTLY, THOSE NUMBERS ARE ONLY FOR POSITIVE (MEANING +X meters) ELEVATION ONLY. NEGATIVE ELEVATION FOLLOWS A DIFFERENT RULESET WHICH IS NOT COVERED IN THIS GUIDE!!!

As tonycheese explained in his guide. Elevation effects the distance of your ball. If you have a high elevation at a very low distance. For example:

Pin distance: 210yard. 0 Ball effect. 0 Wind effect. +6meter elevation. You have to hit the ball harder than just 210+6. This is where the elevation multiplier comes in. For this example: Distance 210yards. Go to the list. Look at the elevation multiplier for 210 yards, which is 1.58.
So you do:

6meters x 1.58 = ~9.5.

So the real distance you need to hit the ball to reach the whole is 210yards +9.5, or just 220y. You don’t have to be that fussy about the decimals. The list is just there to indicate that the modifier changes depending on distance. After a while you will just know how many yards to add to your power without having to look in the list and without calculating it every time. This is also NOT perfect. It’s just to give you an Idea. Some holes work different with +20m or something. The multiplier may not work here!

Elevation Modifier/Adjustment

From my experience, these Elevation Modifications work for all drives. I play 260y on Korea right now, and this works.

The last set of columns is the needed modification for your HWI depending on elevation. tonycheese and I already explained that if you have a negative elevation at a certain distance, the ball drops -> more wind effect on ball. Vice versa for negative elevation. Lets take the 240y example again:

Three scenarios with the same conditions except for elevation: 0 Ball effect, crosswind, no slope. So we have:

1)240y with 0 elevation
2)240y with -5m elevation
3)240y with +5m elevation

1) There is no elevation effect, so the HWI will still be 3.34

2) The ball drops 5 meters -> bigger effect on ball -> HWI has to be adjusted (increased in this case). Go to the list, look where you see 5m in the “Elevation” column and add the corresponding value from the “Adjustment” column. This is 0.07 in this case. Therefore we have:
3.34 + 0.07 = 3.41
This is your hwi for the shot now.

3) Opposite case here. +5meters -> less effect -> decrease HWI. Resulting in:
3.34 – 0.07 = 3.27

Now that you have gone through all this, head back to the Examples page to go through some calculations.

Things to remember:
- HWI Selection is: Pin distance +/- Wind effects +/- Ball Effects (95%, 90% etc)
- Adjust HWI for elevation
- To calculate slope use the HWI after Elevation Adjustment
- Positive and Negative elevation follow different elevation rules
- Final power is: Pin distance +/- Wind effects +/- Ball Effects +/- Elevation
- The elevation multiplier is not perfect. Some holes may require manual adjustments


43 Responses to “HWIs”

  1. omg hax

  2. Thank you very much for this guide. I’ve gone through all of it and have a few follow up questions, which I will try to post in the appropriate sections. For this HWI section, I have two questions.
    a) Now that you’ve got us going with positive elevations, I’d like to flesh out the chart with the adjustment values for negative elevation. If you will not be covering that ruleset in the future, can you point us (me) in the right direction as to how we can find these values for ourselves? I’m happy to spend some time in practice mode taking notes – I’m just not exactly sure what I’d need to do. Thanks in advance.
    b) Along those same lines, I would imagine that HWI values will be different for different 1w powers (252, 254, etc). Any tips on how to flesh out that HWI chart for different powers? I’m down with the “do it yourself” method – just looking to be pointed in the right direction.

    • 1) I am not sure which adjustment you’re talking about? HWI or POWER ? HWI adjustment is the same for negative and positive elevation. Power is not not the same.
      Do a shot at 230y with like -20m elevation and then do l a 265y shot with -20m elevation, crosswinds would obviously be best to try this, or low winds with high angles. (ice cannon is best for this i guess). You will see the difference rather quickly.
      Also just looking at short distance shot vs long distance shot trajectories will give you a pretty quick idea on distance gained in reference to elevation.

      2) Yes, the HWIs are different, but the difference between 250 and 252 for example is miniscule that you would maybe see it in 9m crosswind with a 4.0 and above HWI. And generally, the MAX HWI between 250 and 260y for example are a lot smaller than you might think. The best way to test it is obviously (and with 252y compared to 250y this will be rather difficult) is high crosswinds and flat ballslope helps too. Then you take an hwi from the 250 sheet and change it to what you believe it should be for your drive (or just pick ANY hwi). Then take the shot, see where it lands. If you miss, just calculate backwards to the value that would have put you in the hole. This is a tedious process.
      You can safe A LOT of a time by just looking at the trajectory between say 250y and 260ydrive for same distances. You can make very basic assumptions which can help you adjust your current HWI set to a new drive with ease.

      I hope these answers were understandable, let me know if anything is still unclear!

      • Thanks for the answers across all subjects. The slope clarification helped. I was asking about the negative elevation as it affects power. The crosswind thing makes sense – you want to eliminate the wind influence on distance and just have elevation influence. I’ll have to try that in practice mode later on IC. I guess the same methods can be used for distance on a spike shot, which is another thing I don’t have any data on yet.

        I’m excited to mess around with this stuff. I set it up in excel last night but haven’t run any games yet. I’ve been playing for about ~ 8 months and have gone as far as I can with my current skills/tools. Hoping this takes me to the next level. Do people also use HWI for 6iBi (I imagine it’s pretty low), or is there a more effective method?

  3. Thought you might like to know that the download limit has been reached on rapidshare for the file linked near the top of this post.

  4. I have a question about slope. What do you mean by number of breaks? How can you count that number of breaks that there are onthe line?

  5. Some of the numbers in your spreadsheet seem to be weird, or is this because they’re special numbers?
    Elevation 12.50, 16.50, 21.50 have 0.02, 0.02, 0.03 respectively. BS data set 210 pin has slope of 0.25 and a HWI difference between 210 and 211 pin is more than usual compared to the rest of the data. 4.07 for 210 and 4.17 for 211. Also for BS, 177 and 178 pin have same HWI?

    • Ah, errors in the elevation there:
      12.5 = 0.17
      16.5 = 0.22
      21.5 = 0.29

      Guess I will need to fix those. Thank you. As for HWIs, that is what I use. There are inconsistencies in the game where certain distance share the same HWI or the HWI difference between two distances is larger than usual

  6. Congratulations on this forum. Staff & members.
    content of better quality is here!

    one question:

    The “TRUE ELE” + formule in your Guide 260 Y,has possibilities of work with 256?
    ; )

    • Yes, it should. But since it is not 100% accurate for 250 don’t expect it to be any better for 256y.

  7. You can post HWI for 244y drive? Im just a begginer E (D:)

    • We generally don’t do one on one requests.
      However I can create an approximate set, but they wouldn’t be 100% accurate – in most extreme cases theoretically they will be .01 cells off on certain yards (presuming such a small drive follows a similar curve to 250 ~ 260 drives). If you can determine an appropriate maximum & minimum hwi, I can help. Keep an eye out on the blog, I have some interesting stuff prepared. (up)

  8. Hello, I loved your tutorial, well explained. I understand everything, but I have a question. You are using the power 264y, I use 256y, will be that you could teach me to make a table of HWI for 256y? or make for me ?

    Now thank you for your attention. ^^

    • Ah you are confused. This is a hwi table for 250 yards. The maximum tomahawk yard is roughly 264 yards (10 for power shot, roughly 4 for maximum toma cut)

      I’m currently figuring some issues out. Keep your eye on the blog though, I plan on posting a tutorial on base hwi creation fairly soon.

  9. hello I hava a doubt When you talk about elevation multipler you talk the drive is 240y, but with al… you saw the wind+/- elevation+/-?
    thanks for attention

  10. Sorry I made a double post but have a comment by sinneah and i saw 12,5=0,22 elevation adj.How can be 13=0,18???
    is more than this…I think…I am waiting the answer =)
    Thanks

    • That is a typo. Elevation 12.50 = 0.17 Elevation Adjustment

      I haven’t bothered to fix it yet.

  11. Is it possible to adjust those values from 250y to 264y? :P

    Thanks for answer > W <

  12. aswerring the question by gigglegimmi.
    Have a guide on thai forum with guide 264y…talking about thet a have a doubt… I made -33 with 250 guide…
    i am trying to use 264 guide…20 control is roxx but that isnt a problem… the problem is… I was training pink wind i fould everything real ele, wind, all to find the pin… for ex hole 16(or 15 idk)15,6 ele 228y pin…the real pin is for wind 8 and angle 90 is 252y… but when you use 252y hwi and do -0,21 is(3,09) that is a lie… because wqhen you use pin 228 the real hwi…. how can teach it right… if you dont agree do what i did, is a true.

    • because when you use pin 228 it is the right hwi…. how can teach it right… if you dont agree do what i did, is a true.
      Ps.: when I post the first post i read again and dont understand what i was talking =P Sorry double post again, is possible edite the posts?

  13. I have been using a different rule for positive elevations – although I can’t quite visualise why it should follow a different ruleset, it seems to be working quite well so far. Still needs tweaking though. I have been using my own 260 yard HWI and borrowed the elevation adjustment stuff from the 250 HWI posted here – which certainly doesn’t work for positive elevation. Just play a round on pink wind and it will soon become clear that it just doesn’t work.
    Anyway, I have roughed it down to something like this for positive elevation.
    HWI adjustment = elevation / 0.088
    Example:
    Pin 231 yards, +5.76 yards elevation 1W backspin flat green, flat ball slope.
    Take HWI for 237 as 4.54
    Elevation adjustment: 4.54 – (5.76 x 0.088) = 4.03

    I finally nailed a -30 on pink wind using this with 3 missed pangyas on approach shots and a couple of nikes so I am hoping to improve on that very soon. Can anyone else verify if this is at all close to being accurate?
    Cheers,
    Stu

  14. Hey sinneah, I was gonna ask you a question about the HWI list….Lets say I have a drive of 254(which I do) and I try to use a 260 HWI(which I do) would that be accurate or inaccurate? I notice I miss alot even if my calculations were correct. I downgraded to 250 today and Im gonna get the 250 hwi you have and use that and see if its mroe accurate.

    Also, another question…When calculating a shot, lets say I have the correct aim and everythings right, but when I shoot, I miscalculate the power, and I go over maybe…1-2%, will the ball still go its trajected path?

    Like for example, lets say I have 230 pin, 9m wind, neutral angle, -3m elevation. So doing the math that wuold be 27.13 PB’s. Now Assuming my math is correct(i did it in head and I dont have my sheet with me so it may be off by a bit) thats the right aim. Now I do power, which would be 230-(.5)/240 which would be…95.5% I think. Now lets say I Do the math right and I happen to hit 97%(Dont know why I would but when time is running low, It happens) and BOOM I shoot….Would the ball have a different 230 pin HWI if I hit more power than was needed? Ive been trying to figure this out on my own but I get mixed results…Sometimes it’ll go in, sometimes it wont.

    Also one last thing(sorry i feel i rather just ask all these questions I cant figure out on my own rather than keep assuming im donig things right and keep missing), With elevation there is some really weird things I’ve noticed. Ive taken a look at Tony cheeses toma trajectory elevation figures, and I cant really seem to understand the effect elevation has on a toma…like when I shoot I notice something weird happens…if lets say the pin is 264 yards with an elevation of…+3 meters with 1m tail wind(these numbers arent actual depictions of what the real scenario was) and I hit max power toma thinking it’ll get close to hole, I notice that the ball will actually go beyond the hole….Now This is where im confused at…With Higher distance and higher elevation, why would It go beyond the hole? Ive really been bugged by this, and I cant figure that out….the trajectory of a toma is it peaks and drops down…but it peaks only for so long and then drops down…..if the elevation is higher, it should’nt go as far.

    Sorry for this really long message…if you feel you dont need to answer anything just let me know in a response and Ill try and figure it out on my own again.

    Thanks ALOT in advance

    • 1) It will be inaccurate. I don’t recommend using a different drive’s table for your drive, but if there is no other way, I’d use the 250 instead of the 260y simply because 250y is only a 4y and 260 a 6y difference to 254y drive

      2) Not quite sure what you mean :S If you overhit by too much it will not travel what you calculated for. More distance -> more wind effect on ball obviously the higher the wind and the bigger the angle the more important an accurate powercut needs to be. For example: If I overshoot by 10yards with 15degree 1m wind I will probably still hit the beam. You won’t get that lucky with high winds

      3) I hope I can put this in words without becoming confusing.

      The trajectory of the ball will change based on the power you hit. The higher the power, the steeper the angle will be when the ball hits the ground. So if you were to hit 100% with -30m elevation, the angle would be very close to 90degrees (vertically). Obviously you will get the opposite results with very high +elevations for the same power -> angle will becomes less. What does this all mean? It means that elevation becomes less relevant the higher your shot% is. For this reason, you will gain less distance when shooting 100% with -20m than when shooting 85% with -20m for example. Assuming 100% will go exactly 260y, then at 100% with you would only gain +15y in total whereas 85% – assuming it would go 220y, you would probably gain even more than 20y from the 20m elevation. And for the same reason, some +elevation will mean less in total distance when you shoot high% shots.

      Coming back to your example with 264y distance (I am assuming this is 250y drive here?). Lets just assume for arguement’s sake that you shoot 100% here and the angle the ball hits the ground at is 90 degrees. In this case it would be irrelevant if the elevation is 0 or +3 because hitting the ground at 90 Degrees means the distance the ball is travelling during the last part is almost 0. In simpler terms, if I take a ball and drop it down directly from 100m or 50m, it will still hit the same spot because it’s just dropping vertically. So the determining factor for this shot would be the wind, not elevation. Furthermore, the max for 250y drive tomehawk will go something like 264.5y which should also be considered.

  15. Hmm..took me a couple re-reads but I think I got it now.

    Lets say your elevation was -7.55 meters(Ice spa hole 6) with a pin of 241(i believe), with a….6m neutral wind and I were to hit with 1w(rather than 2w)…so that would be 234/260 would be 90%, but since its only 90% rather than 95%+ I would add extra yards?

    Either I got what you were saying correct or backwards, XD its one of the two =)

    • Well, sort of. The lower you go, the more yards you would gain from the -elevation. But it also depends how big the elevation is. There are really a million scenarios one could discuss. So I will just have to say to you try it out and see for yourself and you will see when you need to add or subtract some extra yards for elevation based on fixed scenarios like Par3 holes in the entire game.

      I also recommend not doing [required distance] / [club distance] for your powercuts. In my opinion it’s better to learn what all cuts look like :D

  16. Ok so I’m finally trying out this guide after realizing that my previous calculations were failing miserably so I have a couple questions now that it finally makes sense to me…

    1) “To calculate slope use the HWI after Elevation Adjustment” If I’m at the tee and there’s no slope…I don’t have to do this right? I know this is a dumb question but I just want to make sure lol.

    2) How should I go about calculating power cuts for negative elevation? Power cutting is probably my worst aspect and I find myself either over shooting or undershooting very often. I just do the basic pin-elevation/club distance (I include the powershot in this so I do like 260) and then I basically guess the%. Yea this is completely retarded and inaccurate but I’m not sure how else to go about doing this T_T; Any tips would be appreciated. Thanks for the awesome guide as always btw

    • 1. No offense, but yes, that is a dumb question :)

      2. Learn where your cuts are with ~0 elevation. (Pin+/-elevation)/club distance is stupid. Looking at the distances on the HWI sheet should give you that hint, because 80% of 260y is not 208y in this game. 80% = ~200y. Just think about it.

  17. Hey, pretty decent of you guys to put up the HWI tables, got around to buying a nice calculator and already had my first successes with calcing, i’m amazed accurate one can play by calcing.
    Gonna spend this month in family mode, learning angles and get my overall calc time lowered, i already love it! Was pretty overwhelmed with the HWI-tables and the guides in total, but it’s actually very user-friendly, good job! Shame about the neg. elevation though, but i’ll learn that eventually. Well, that’s it, just a general thank you to all of you, very nice, as stated above!

    • Thank you!
      Not sure what exactly you want to achieve in family mode. Personally, I'd recommend normal tournament play for practice.

  18. For now, practice mode has to suffice, just started today with teh calcing. Got a question now, regarding “Elevation Modifier/Adjustment”: How do i get the right Power (Toma) when i’ve adjusted the HWI? Do i take the Power of the shot that is close to/the same HWI in the list? Or did i miss something in the guide?

  19. Bah, nevermind, i got it, sorry, i should try things before posting.

  20. Me again. This calcing business really has brought the fun back to playing Pangya for me, it’s amazing to see shots going in which you never even dreamed of to hole. I also followed your advice, Sinneah, and am playing torneys (sometimes going in Fam mode to check shots i missed), so far no new recs (my highest is -26 on IC with feel-aiming), but i’m getting there :D Practicing Toma only for the now, standard BS’ing is for much later. One advice i can give for new calcers: TAKE NOTES! If your shot misses, even if you did everything correct (or thought you did :P), note it, go to fam mode, and try to find out what the error was. I’m making steady progress this way!

  21. hi mygo i just wanna ask something. as in the vid for h2, u put pin as 223y if not wrong.then u typed 2.35 (hwi for 223y). then u typed 2.45 ( after adding elevation). then (2.45*6=14.7 4.7+) if we use the sin(deg) method we cant possibly get 3.127+ as sin(anything) doesnt give a whole no. 14.7=k(4.7+) so k shuld be the angle if im not mistake. i just wanna ask how u get the angle as 3.127+. thx loads

    this was wad i wanted to ask mygo on youtube but since he doesnt want to talk about angles and cals i can onli ask here.i wish some1 could help. i also found out neagtive elevations form mygo.as shown in his pink wind vids h2 and h15. h15 was obvious as he used slient wind which came to 1m 90 deg. i saw him adding 0.1 to his hwi then – 0.17( green slope ) and at that time, the elevation was – 1.28 if not mistaken. so -1.00+ elevation could most probably be 0.1. as for h2, he added 0.11 to his final hwi and the elevation was -2.00+. so maybe -1.00=1 and -2.00=1.1 and so fourth.

    back to the 1st paragraph. i just wanna ask sinneah or stormcats for help. thx.

  22. This is not a blog to figure out what mygo does. Sorry, we can’t help you, so I took the liberty to delete the other posts.

  23. I’m not sure those hwi are correct… (well it can be the ele adj.)but i miss vertical wind.

  24. Is there anyone but me who have experienced issues doing the PB-aiming with mouse-clicks?

    My aim isn’t going where I press with the pointer, although sometimes it is correct and sometimes not and it also varies with how much it misses where I point, which is kind of annoying as you may understand ;P For the moment I’m using the keyboard but that takes so much more time :/

    Anyone have any clue if there’s any fix or what might be wrong? And yes, I am using 640×480. It seemed to work fairly fine before S4 came out I think although I think it did that somewhat back then too.

    • Has to do with the green slope. You’ll figure it out

      • Oooh, I had not thought of that >.< Perhaps I should've read this through more carefully. At least that explains why I do good on greens with no slope and bad on the others :D :D

  25. Advantage of Family Mode over regular play:

    1. No waiting for other people
    2. Your items don’t expire
    3. You can do multiple shots with the same stats to compare and contrast your trajectory and final landing.
    4. You can quit out whenever and it doesn’t hurt your quit rate.

    Disadvantage:
    1. No exp, items, or pang
    2. No 2x

    I just started calcing a few days ago but I have a long ways to go. I’ve been practicing front 3 at Lost Seaway, and quitting if I miss HIO on 2.

  26. Hey guys, ive been messing with 3w Hwi nothing overly serious but i have been using 1w hwi x 1.50 seems accurate so far, but if anyone finds that it isnt dont blame me.

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