#1) If you use Angle of Delivery, you will require stiffer shafts. With Arc of Deliver, you will require flexible shafts.
Here's why...
I can't remember precisely where I was reading, but there was a reference to 6-C-2-A which is about the Lag component when the sentence: "The Clubshaft is stressed by the weight of the Clubhead resisting a change in direction or velocity..." when the thought jumped out at me. THE SPEED OF THE DIRECTION CHANGE is what TRUELY makes the shaft bend the amount it does. Therefore, a shaft will not have a tendency to flex if it is moving IN LINE WITH THE HANDS... that is the ANGLE OF APPROACH or hitting motion. It is not until the release component starts where the direction of the club and the hands becomes radial.
In an ARC OF APPROACH proceedure, there is constant directional change (laws of centripital force). That will always put stress on the clubshaft but will be much more CONSTANT in it's accelleration.
The point of direction change is critical to what I'm saying. In an ANGLE of Approach proceedure, the directional change comes very late in the swing, where as with the ARC of Approach it comes very early and sustains itself intil there is no more accelleration.
Therefore, a swinger who has an ARC of Approach proceedure will require a shaft that can stay loaded since the change in direction is constant but slight... where as a hitter with an ANGLE of Approach proceedure will not require as much load of the shaft because of the abrupt change in direction which will cause the shaft to load just long enough for impact.
Take this finding for whatever it's worth to you. It may not seem like anything to you, but it's something I'm going to pay much closer attention to when I'm doing my club fittings.
#2) In an effort to understand why a "Swing with the upper arms" approach has been so productive for me and many of my students (as well as students of my peers), I have tried to come to grips with how TGM would handle such an inclination. I have come to believe that by using the Upper Arms as the primary radial motivator in the swing, it keeps the power package together as 1 Unit moving as a whole in the swing. Neither the left or right side of the body is allowed to "Overcome" the other because BOTH are being used. This movement of both upper arms retains the structure of the power package allowing both PULL and PUSH to be done simultaneously. All accumulators would be in use making for the most powerful swing one could devise. It is my belief that THIS is why success has come easily for those who have grasped the Upper Arm Swing concept. Could this be the golden 4 Barrel Swing that isn't as uncontrolable as Homer says?
As one last thought.. perhaps this is merely a "Pivot Controled Hands" proceedure.
Here's why...
I can't remember precisely where I was reading, but there was a reference to 6-C-2-A which is about the Lag component when the sentence: "The Clubshaft is stressed by the weight of the Clubhead resisting a change in direction or velocity..." when the thought jumped out at me. THE SPEED OF THE DIRECTION CHANGE is what TRUELY makes the shaft bend the amount it does. Therefore, a shaft will not have a tendency to flex if it is moving IN LINE WITH THE HANDS... that is the ANGLE OF APPROACH or hitting motion. It is not until the release component starts where the direction of the club and the hands becomes radial.
In an ARC OF APPROACH proceedure, there is constant directional change (laws of centripital force). That will always put stress on the clubshaft but will be much more CONSTANT in it's accelleration.
The point of direction change is critical to what I'm saying. In an ANGLE of Approach proceedure, the directional change comes very late in the swing, where as with the ARC of Approach it comes very early and sustains itself intil there is no more accelleration.
Therefore, a swinger who has an ARC of Approach proceedure will require a shaft that can stay loaded since the change in direction is constant but slight... where as a hitter with an ANGLE of Approach proceedure will not require as much load of the shaft because of the abrupt change in direction which will cause the shaft to load just long enough for impact.
Take this finding for whatever it's worth to you. It may not seem like anything to you, but it's something I'm going to pay much closer attention to when I'm doing my club fittings.
#2) In an effort to understand why a "Swing with the upper arms" approach has been so productive for me and many of my students (as well as students of my peers), I have tried to come to grips with how TGM would handle such an inclination. I have come to believe that by using the Upper Arms as the primary radial motivator in the swing, it keeps the power package together as 1 Unit moving as a whole in the swing. Neither the left or right side of the body is allowed to "Overcome" the other because BOTH are being used. This movement of both upper arms retains the structure of the power package allowing both PULL and PUSH to be done simultaneously. All accumulators would be in use making for the most powerful swing one could devise. It is my belief that THIS is why success has come easily for those who have grasped the Upper Arm Swing concept. Could this be the golden 4 Barrel Swing that isn't as uncontrolable as Homer says?
As one last thought.. perhaps this is merely a "Pivot Controled Hands" proceedure.