Originally Posted by Daryl (Post 79654)

Kevin,

I agree with your friend on the Champions Tour. The Balls are getting straighter. But why? Will the Ball makers tell us? If they do, then what do you think they'd say?

Originally Posted by BerntR (Post 79684)

A wild guess from me:

They manipulate the weight distribution inside the ball so that its MOI increases: That would be a lighter core and more weight towards the surface. For a given spin rate this will give the ball more spin energy when it lands on the green. So that it can handle more turf friction before it stops spinning.

With this increased spin endurance in place the ball doesn't need to land as steep as before to have drop and stop performance on the green.

And when the ball needs less of a spin towards the sky - drop dead air flight they can reduce the air drag when the ball is in the air. And when they reduce the air drag the ball goes straighter and it doesn't spin towards heaven when you play into the wind.

But I'm only guessing here.

Originally Posted by brianmontgomery2000 (Post 79682)

I'm just starting to investigate the D-plane. I actually have found it quite beneficial to my understanding of what's going on through impact and any resulting ball curvature.

I've also found it seems to explain my predominant draw/hook ball flights from the summer. As I've begun to play the ball back of low point (i.e. up plane) and take a divot, I've hit shots that I would have sworn were right down target line/plane line (one and the same for me aligned neutral or square) with club face square that drew/hooked.

Well, d-plane predicts that (maybe TGM, too, but I didn't understand). So, for me, my understanding has increased and I have a better thought as to how to align (swing plane slightly left of target line) to get a straight ball.

Having said that, I still think TGM provides the best "how to" around! As others have said, if Homer was slightly off on the precise nature of the clubhead/ball collision, I don't think that detracts from the practical results of applying the components that put that clubhead into motion.

So, for me, TGM and more precisely Alignment Golf provide the swing mechanics that I want to learn and apply to improve my ball striking and ultimately reduce my scores. The d-plane has helped me at least better understand what is going on through impact (despite what my prior "knowledge" and feel led me to believe) and understand that I HAD made the swing I intended but got results that would have led me to change things I didn't need to change...I just need to work with slight changes to alignment!

Again, as others have said, I think all of golf benefits from the search for a "unified field" theory of the swing. Facts gathered from Track Man (clubhead path, etc., more so than the "predicted" ball flights which should just be observed) need to be incorporated and explained by TGM if we are to be able to continue to expand our knowledge and understanding of the golf swing and resulting ball flights.

Just my 2 cents on the topic...

Originally Posted by John Graham (Post 79696)

As a constant double checker, I came hear to find out if what I learned and was teaching was incorrect.

From what I have learned here, I'm not convinced that this information about the D Plane has been trumped by the geometry of the circle but I am open minded.

Originally Posted by Daryl (Post 79706)

The D Plane assumes that the Ball Rolls on the Clubface. Impact and separation points are always different and D Plane never assumes Max Compression.

All Hinges produce a sustained line of compression, so all hinges give maximum compression. The Angled Hinge tilts the Line of Compression.

Originally Posted by Max Impact (Post 79714)

The D Plane is a term for the plane connecting two impact vectors. It is not an analytical model. Hence, The D Plane doesn't "assume" anything.

The book clearly identifies only Horizontal Hinge Action as the ideal application of linear force, producing perfect vector alignments.

And for the record, an arched left wrist, or its equivalent, would produce more compression than The Flat Left Wrist, or its equivalent. This would, of course, "hood" the clubface, which the book suggests to avoid. Although, virtually all great ball-strikers do it.

Originally Posted by Daryl (Post 79715)

It's clear that you have NO grasp of "compression", the "line of compression" or "sustaining the line of compression". You said: "And for the record, an arched left wrist, or its equivalent, would produce more compression than The Flat Left Wrist, or its equivalent." Are you delirious?


Furthermore, you don't have a grasp of your own beliefs. Have you read page 80 of your Bible: "The Physics of Golf"? it says:



Duh? "Slide, then Roll" Duh?