7i numbers - too high of spin? Shafts from 130g to 95g tested

[rxk9fan]

I am trying to settle on iron shafts and I would appreciate comments!

I feel the spin rate is too high but height is not horrible. I am thinking bending them a couple of degrees strong might get the spin down and I would like a low to mid trajectory for the wind I play in sometimes. Am I thinking right or would bending them not be a good idea? I will be 60 in a couple of months so lighter is probably not a bad idea?

Spin Rate Carry Total Smash Fac. Height

 

Modus 105- S 7997 151.6 155.6 1.33 100

 

SteelFiber 95- R 7790 156.3 161.3 1.33 97

 

KBS Tour 130 X- 8400 152.1 155.0 1.32 105

 

Recoil 110 Proto-F4 8040 153.6 157.7 1.33 100

 

 

A variety of shafts but I think my favorite is the SteelFiber 95. Does anything else stick out as much better than the SteelFiber? They would be kind to my elbows I think...or they have been this last few months. Thoughts on using them and bending them a couple of degrees strong?

 

Thank you for your ideas! Kind of interesting that the numbers are so close with shafts going from 130gm X steel to 95g R Steelfiber!

[golfer55082]

What launch monitor did you use to get the spin rate? Did you hit off mat or grass? The spin rate numbers seem very high as you noted.

[Jagpilotohio]

Those are some funky numbers my friend. Spin and carry don’t really match. 8000+?? Wild.

 

Bending 2 degrees won’t do a whole lot.

 

You may consider a soft stepped steelfiber 110s to lower traj and spin. They run a bit stiff.

 

KBS c-Taper In stiff or KBS tour V 110s hard stepped once might be worth a go.

 

I play tour v in 120x soft stepped once and the spin is very modest. Nice piercing mid trajectory. Gets up quick and flattens out.

 

34 degree 7 iron carry of 178 and spin at 7200.

[rxk9fan]

What launch monitor did you use to get the spin rate? Did you hit off mat or grass? The spin rate numbers seem very high as you noted.

 

Trackman indoors off mats. Thank you for your thoughts!

[rxk9fan]

Those are some funky numbers my friend. Spin and carry don't really match. 8000+?? Wild.

 

Bending 2 degrees won't do a whole lot.

 

You may consider a soft stepped steelfiber 110s to lower traj and spin. They run a bit stiff.

 

KBS c-Taper In stiff or KBS tour V 110s hard stepped once might be worth a go.

 

I play tour v in 120x soft stepped once and the spin is very modest. Nice piercing mid trajectory. Gets up quick and flattens out.

 

34 degree 7 iron carry of 178 and spin at 7200.

 

I want your numbers :-)

I want my 7i around that 7000 mark. Distance is what it is for me so I don't really concern myself with it. But the spin is a big deal and gets bigger when spring comes. Thank you for looking and commenting!!

[rxk9fan]

FWIW,

I just checked club speed and it was a pretty consistent 83mph - 85mph

Attack angle averaged around (-3.5)

[Davethegolfer]

Interesting that you could get the KBS to perform at that swing speed

 

[Golfrnut]

You need to be looking more at the relationship to launch angle and the decent angle to better analyze the numbers. The spin by itself basically means nothing. The spin rate differences with mid/short irons isn't going to mean near as much as it does in relationship to everything else combined that determines your peak height and descent angle.

[jasonp87]

Your numbers to me indicate a few things...

 

Seeing as the heavier and stiffer you went. Your spin increased. This is likely because you have a flip of the wrists that gets worse with a heavier stiffer shaft so you hsve to flip more to square the face.

 

My suggestion based on my hypothesis would be to try something even lighter then the SF95s if u can. In a stiff or regular flex.

[rxk9fan]

Interesting that you could get the KBS to perform at that swing speed

 

That was the one that surprised me the most!

[rxk9fan]

Your numbers to me indicate a few things...

 

Seeing as the heavier and stiffer you went. Your spin increased. This is likely because you have a flip of the wrists that gets worse with a heavier stiffer shaft so you hsve to flip more to square the face.

 

My suggestion based on my hypothesis would be to try something even lighter then the SF95s if u can. In a stiff or regular flex.

 

I think your hypothesis seems very plausible ! My problem is that I struggle with tempo even with the 95gm. I am having the builder shoot for D5 as that was what Club Champion came up with last fitting.

 

Interesting and I would not believe it but I saw it on the scale. The P750 with the KBS had a SW of almost D7. Because of that we don't think there will be any problem getting to D5 with the 95gm Steelfiber along with the right grip.

[rxk9fan]

You need to be looking more at the relationship to launch angle and the decent angle to better analyze the numbers. The spin by itself basically means nothing. The spin rate differences with mid/short irons isn't going to mean near as much as it does in relationship to everything else combined that determines your peak height and descent angle.

 

Launch angle - 21 degrees

Landing angle - 50 degrees

This is average but every shot with every combo was within a degree or two from this average.

 

If you can explain what you are referencing I would appreciate the opportunity to learn. I don't know what would be ideal or acceptable with these numbers using a 7i.

[Golfrnut]

You need to be looking more at the relationship to launch angle and the decent angle to better analyze the numbers. The spin by itself basically means nothing. The spin rate differences with mid/short irons isn't going to mean near as much as it does in relationship to everything else combined that determines your peak height and descent angle.

 

Launch angle - 21 degrees

Landing angle - 50 degrees

This is average but every shot with every combo was within a degree or two from this average.

 

If you can explain what you are referencing I would appreciate the opportunity to learn. I don't know what would be ideal or acceptable with these numbers using a 7i.

 

You’re basically looking at the angle your ball would be coming into greens. 45-50 is a good target to shoot for, the high or low side of that can depend on playing conditions. Windy conditions and soft greens, perhaps you would want to be lower on peak heat (apex) to keep it lower in the wind and the softer greens would allow you to not roll out too far. Harder/faster greens, coming in a bit steeper will help. Little higher/little lower can be controlled with head loft if meed be.

 

All those numbers look okay, so pay attention to what kind of dispersion you are getting, all of them have you in a good window but which ones feel the best and give you the best consistency? That’s kind of where you should be right now.

[rxk9fan]

You need to be looking more at the relationship to launch angle and the decent angle to better analyze the numbers. The spin by itself basically means nothing. The spin rate differences with mid/short irons isn't going to mean near as much as it does in relationship to everything else combined that determines your peak height and descent angle.

 

Launch angle - 21 degrees

Landing angle - 50 degrees

This is average but every shot with every combo was within a degree or two from this average.

 

If you can explain what you are referencing I would appreciate the opportunity to learn. I don't know what would be ideal or acceptable with these numbers using a 7i.

 

You're basically looking at the angle your ball would be coming into greens. 45-50 is a good target to shoot for, the high or low side of that can depend on playing conditions. Windy conditions and soft greens, perhaps you would want to be lower on peak heat (apex) to keep it lower in the wind and the softer greens would allow you to not roll out too far. Harder/faster greens, coming in a bit steeper will help. Little higher/little lower can be controlled with head loft if meed be.

 

All those numbers look okay, so pay attention to what kind of dispersion you are getting, all of them have you in a good window but which ones feel the best and give you the best consistency? That's kind of where you should be right now.

 

THANK YOU

[jasonp87]

100% you have a flip.

 

If your Launch angle is around 21 with that much spin and only -3.2 aoa. Thats a flip if ive ever seen one.

 

Id see if u could demo a SF85 and add some lead tape to get SW up and see what happens.

[FirePro]

I used to do the same but with more AoA and a flip used to spin the ball off the planet.

[rxk9fan]

I really appreciate the help! I think my plan now is go Steelfiber and fix the swing problem. I will try to figure out how to post a swing video from the fitting session in the instruction section and maybe here too? Then if that is the problem I will get help with fixing it.

This may be a huge help for me.

Thanks again as I am excited to get to the bottom and work through it!

[Stuart_G]

Post the swing over in the instruction forum, not here. But keep a few things in mind.

 

If there is an issue with the swing that shows up, by all means address it but changing your swing just to chase numbers is almost always a bad idea.

 

Those numbers really are not all that bad at all, and I disagree that they are an indication of any swing issue. You might not have as much forward lean into impact as some, but there is no perfect or ideal amount. I'd only worry if you are routinely getting ballooning and distance control problems (inconsistencies).

 

For some, playing around with swing weight can sometimes have some effect on the release and the dynamic loft delivered. It might not be a bad idea to play around with adding some lead weight to the head - incrementally a couple of grams at a time. But remember, a comfortable feel, consistency and accuracy in the results is more important than chasing particular numbers during that testing. If it comes down to just needing to tweak the numbers a little bit and everything else is good, then you can take Golfrnut's advice and just have the lofts tweaked a degree or two stronger.

[oz dee cee]

It’s. Swing problem. And you’ve got three different flex types there which is odd. Grab a few lessons and make changes then refit. Or if you can’t wait, you should be a regular flex and go relatively light, say 95 grams. Luck

[rxk9fan]

It's. Swing problem. And you've got three different flex types there which is odd. Grab a few lessons and make changes then refit. Or if you can't wait, you should be a regular flex and go relatively light, say 95 grams. Luck

 

Agree with it is a swing problem and isn't it always? Three very different shafts and flexes because:

1. I purchased the P750 used knowing that I would change shafts but I wanted the heads. I played a couple of rounds and hit them straight so why not test?

2. I purchased P770's with Steelfiber shafts to try and reduce elbow pain and it did do that. I read they played stiff to flex so wanted to try the R (Elbow and joint pain originating from compound fractures of both arms after going off a motorcycle and over a car 90 feet before hitting pavement 11 years ago-I started back last year after 9 years away from the game)

3. I did both a Club Champion fitting and Mizuno optimizer session last year when I first picked up the game again. Neither session suggested any R flex shafts. Driver SS showed and shows 99 to 103 with a medium transition.

 

Appreciate the comments and luck for sure. My teacher of old (Marshall Smith who was amazing as are his books) passed away when I was away from the game. I have finally identified who I want to work with and have a scheduled lesson after vacation. This is my number one priority and I can't wait :-)

 

Curious as to why you seem confident I need a R shaft? I also hit the modus 105R on Trackman and while distance was good (for me), everything was left. The fitter said the Trackman data and ball flight indicated a light weight R flex shaft would not serve me well except for possibly the Steelfiber.

[ChaosTheory]

I think the TXG guys in videos say mats add spin.

[oz dee cee]

I suggested R based on distance and age, but conceed its pretty hard to fit with just data. And I’m not a pro or fitter!!!

 

I was fit into regular shafts with a 6 iron swing that was the same swingspeed as your 7 iron. I also hit 7 iron 170 yards as reference.

 

Goes to show different swings and people need different things.

 

 

 

[Stuart_G]

I think the TXG guys in videos say mats add spin.

 

Mats typically reduce spin.

 

https://blog.trackmangolf.com/mats-vs-grass-whats-difference/

[ChaosTheory]

^^^ Thanks for the correction. It's heck to get old.