The Most Important Illustration in the History of Golf

[innercityteacher]

Originally Posted by Daryl

Some fine points that I've learned to encourage and maintain Clubhead Lag through the Impact Interval. CL has almost nothing to do with speed. Acceleration only needs to apply a greater force than the strength of the shaft and the weight of Clubhead inertia. And, Stiff shafts bend easily. Stiffer is better. Stiff shafts stay with you.
Don't create more Lag than you're prepared to Sustain (need for the length of shot)
The Right Forearm must be Driven through Release and Impact
The Right Forearm Flying Wedge must remain Intact. The Right Forearm Flying Wedge Alignment is what brings Clubhead Lag into Impact. Without the Alignment, no amount of Thrust will help. Clubhead Lag is "Keyed into" the Right Arm Flying Wedge Alignment at "Startdown".
The Right Elbow must Straighten as the RFFW approaches the Angle of Approach for Impact. It's easy to lose Clubhead Lag when the Hands Slow. If you can't maintain Hand Acceleration, then use a smaller Pulley. That's what it's there for.
The #3 Pressure Point is indispensable from start to finish. "Trace and Drag".

If you can learn to sustain Tip Bend on a fishing pole, then you can learn to sustain Clubhead Lag with a Golf Club.

Thanks Daryl!

So I'm Tracing, Drag Loading the shaft, then firing the forearm vigorously as I get to the ball to go through it, correct, or are you saying to maintain the constant force?

My most success has been slinging the Power Package down with firm wedges through the sharp Pivot returning to Impact Fix. I think you are speaking about the Pivot moving the shoulder down plane and then extending the the forearm or unbending the elbow.

It will be hard to fire the Pivot and then s-lowly extend the forearm after it rides down.

Thank goodness we have a little more winter for practice! ; >

ICT

[wedgy]

Thanks Daryl!

So I'm Tracing, Drag Loading the shaft, then firing the forearm vigorously as I get to the ball to go through it, correct, or are you saying to maintain the constant force?

My most success has been slinging the Power Package down with firm wedges through the sharp Pivot returning to Impact Fix. I think you are speaking about the Pivot moving the shoulder down plane and then extending the the forearm or unbending the elbow.

It will be hard to fire the Pivot and then s-lowly extend the forearm after it rides down.

Thank goodness we have a little more winter for practice! ; >

ICT

You cannot maintain clubhead lag through the impact interval as stated by Daryl, no matter how hard you try, it ain't happening.

[Daryl]

You cannot maintain clubhead lag through the impact interval as stated by Daryl, no matter how hard you try, it ain't happening.

That's your position? "It ain't happening".

Why do you insist that everyone must "Throw-Away" the Clubhead a few inches before Impact? Why not 12 inches or 16 inches? If you know how to do this, then why not 6" past impact?

[JTillery]

Please explain wedgy....

[wedgy]

That's your position? "It ain't happening".

Why do you insist that everyone must "Throw-Away" the Clubhead a few inches before Impact? Why not 12 inches or 16 inches? If you know how to do this, then why not 6" past impact?

I never said you throw it away,it's the way the shaft behaves that stops you from having a lagging clubhead through the impact interval. Pictures of wildly bending shafts are from camera's not capable of capturing what really happens.

There is science to support this and i did post one up, S.Mackenzie, there's more info on this if you search for it. I never said it isn't worth trying just the opposite but it ain't going to happen the way you described it.

[O.B.Left]

Some see a kicking shaft with the head racing ahead, some see the same photo and determine it to be a lagging shaft.

Is it one or the other or both? I dunno .

[Daryl]

I never said you throw it away,it's the way the shaft behaves that stops you from having a lagging clubhead through the impact interval. Pictures of wildly bending shafts are from camera's not capable of capturing what really happens.

There is science to support this and i did post one up, S.Mackenzie, there's more info on this if you search for it. I never said it isn't worth trying just the opposite but it ain't going to happen the way you described it.

You're so full of it, you're not worth a second more of my time.

[wedgy]

Some see a kicking shaft with the head racing ahead, some see the same photo and determine it to be a lagging shaft.

Is it one or the other or both? I dunno .

The photo's have been explained the camera's that were used are not capable of capturing what is happening without distorting what is happening with the shaft that affects the clubhead at the impact interval.

All the data from places like titleist and other's show the shaft deflecting the clubhead in a leading position at the impact interval no question about it. You think shaft manufacturers know about this in their process of developing their products, ya think?

[wedgy]

You're so full of it, you're not worth a second more of my time.

That's a surprising comment. Hey, when the fact's from many different scientific studies are against your assertion of a lagging clubhead at the impact interval either produce data to refute them or just do what you did go into denial.

If you can produce just one ligit study or photo at the impact interval of a lagging clubhead with the shaft in a reverse c position i will admit your correct. Good luck.


From S.Mackenzie


The purpose of this thesis was to determine how shaft stiffness affects clubhead speed and how it alters clubhead orientation at impact. For the first time, a 3D, six-segment forward dynamics model of a golfer and club was developed and optimized to answer these questions. A range of shaft stiffness levels from flexible to stiff were evaluated at three levels of swing speed (38, 45 and 53 m/s). At any level of swing speed, the difference in clubhead speed did not exceed 0.1 m/s across levels of shaft stiffness. Therefore, it was concluded that customizing the stiffness of a golf club shaft to perfectly suit a particular swing will not increase clubhead speed sufficiently to have any meaningful effect on performance. The magnitude of lead deflection at impact increased as shaft stiffness decreased. The magnitude of lead deflection at impact also increased as swing speed increased. For an optimized swing that generated a clubhead speed of 45 m/s, with a shaft of regular stiffness, lead deflection of the shaft at impact was 6.25 cm. The same simulation resulted in a toe-down shaft deflection of 2.27 cm at impact. Using the model, it was estimated that for each centimeter of lead deflection of the shaft, dynamic loft increased by approximately 0.8 degrees. Toe-down shaft deflection had relatively no influence on dynamic loft. For every centimeter increase in lead deflection of the shaft, dynamic closing of the clubface increased by approximately 0.7 degrees. For every centimeter increase in toe-down shaft deflection, dynamic closing of the clubface decreased by approximately 0.5 degrees. The results from this thesis indicate that improvements in driving distance brought about by altering shaft stiffness are the result of altered clubhead orientation at impact and not increased clubhead speed.

[JTillery]

There's no doubt that photos of blurry shafts being madly bent are partly due to the cameras inability to keep up.........there's also no doubt that the clubhead will get "slung" back to an inline condition or beyond..... at SOME point through the strike.

However, go watch Boo in swingvision on youtube.......immediately after separation I don't think anyone could dispute that the clubhead is lagging the shaft.

IMHO