Just got my indoor Sim complete and am able to track a lot of stats.

Currently my 8i shows:

Club speed 85
Ball speed 110

Launch angle 24*
Club path 6.5*R (In to Out)
Face to path 5.7*L (Closed)

I am pretty sure my Club and face to path are on the heavy side but not sure how much. 3-4*????

You looking to optimize for certain results? Trying to play a big draw here?

I am ok with my swing but I think I am leaving some distance on the bone.

I think if can get a little less In to Out and and more open clubface, I can add a few yards. In addition, my angle of attack averaged -0.6* so a little more attack angel should lead to more compression and a few more yards.

I am really just trying to find stock numbers to see which to try and tweak.

khaos288 said:

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Trying to play a big draw here?

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My current swing tends to be a push with a slight draw back to a little left of my target line.

This is all I could find

I guess I'm having trouble how a 6.5 degree in to out and 5.7 degree closed club face only ends in a "slight draw"

Buck Compton said:

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I guess I'm having trouble how a 6.5 degree in to out and 5.7 degree closed club face only ends in a "slight draw"

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The push draw flight which ends up back near the target line

Which monitor are you using? Face angle is usually calculated rather than measured on many consumer models and is often unreliable.

I am using the Garmin R50 (with stickers) which I dont think using a algorithm

Quote:

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The face angle metric is derived with photo capture and the club being used requires a club tracking sticker attached to the face.

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Do you have heely contact? Otherwise there is just no mathematical way for that not to draw across the target line.

I use the flight scope calculator sometimes, but -.6 is definitely low for an 8 iron. You're also spot on for losing distance to inefficient strikes, but with a face that closed, you should be blasting it long and left.


https://trajectory.flightscope.com/

Here is an example of 1 swing
81 Swing speed
107 Ball speed
144 Carry Distance
23.5 Launch angle
5.6R Club path
3.3L Face to path
5L Carry deviation (yards)

Im.some cases Carry deviations is 15 yards but never a snap hook

Using your website overall launch direction was 2.6R, spine rate 6323, spin axis 9.7L.

Produces a fairly straight shot

Spin axis and face to path are not the same thing.

What's your directional launch angle, and side spin number?

khaos288 said:

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Spin axis and face to path are not the same thing.

What's your directional launch angle, and side spin number?

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Launch direction 2.6R
Side spin 1061 L, spin axis 9.7L

There's a general rule of thumb to have X * 1000 RPMs of back spin for optimal iron control where X is equal to the number of iron you're hitting for blades. If they're players irons or even more aggressive lofts X is equal to the number minus 1.

When you have optimal backspin, you are generally dropping irons onto the number you're targeting vs rolling out. Once you have that, I would say you can pull in the dispersion with neutralizing the face a hair.

The side spin guidance is something like 1 yard offline per 100 RPMs per 100 yards of carry.

So at ~150 yards, and ~1100 yards of spin, you're moving the ball 16.5 yards right to left. That's a lot of variables to account for, and probably very difficult to control in a right to left wind, or ball above the feet lie.

Yes, I understand swing paths and impact on shot shapes. But what I was saying is the numbers you posted were not anything "slight". But khaos is doing a good job of getting to the bottom of the numbers with you.

took a few swing when I got home really focusing on attack angle, added a few yards (averaged -3.7*) and also made my In to Out swing less drastic.

Nice, yeah good descending blows with low point control makes irons infinitely easier to control. I'm not surprised it helped neutralize the path a little too. I've always found it hard to swing in to out AND really hit down on it compared to the opposite.

I've had a GCQuad setup for several years now. Beware of the numbers tornado that draws you in on simulators.

It's easy to obsess over launch angles and club path and spin rates, but at the end of the day you should be looking to create a repeatable swing that you can control on a golf course.

Optimization is great and that's what these devices are great at, but you and me are not good enough golfers to take advantage of the exact numbers provided. You can hand craft the perfect swing but you're still a human with human limitations. Golf is hard as balls.

I can't tell you how many friends come over, see their numbers (this is the exact moment the comparisons to friends, tour players,etc. starts), and then they start chasing what they think are the optimal numbers. The problem is that each of us have different peak efficiencies with our swings. For instance, I'm a low-spin player, so I have to hit the ball higher than others to keep the ball in the air longer. People who spin the ball more get a natural assist from physics that I don't take advantage of. 12* might be the best launch angle for you, but it's closer to 14.5* for me.

Agreed.

I am not chasing but finding flaws of why my swing may not be repetitive day in day out.

That's definitely the approach to use. The descending blow stuff is pretty prevailing opinion of a swing attribute that makes things more repeatable. Sweeping off the turf perfectly every time usually leads to more contact issues. I will admit to chasing specific numbers when I'm working on something. Most recently, I wanted to get my gamer drive swing to 260 carry. I definitely blew up my swing a bit for awhile, and had to play a two way miss. Once I got the carry number I wanted though, I worked on the shape and consistency. Now I'm hitting it as long or longer than I ever have.

The numbers are just a tool for tracking improvement, and are powerful when used as such. If it doesn't translate to the course, it's not worth doing.