rwh
Thanks for that information. What is the cSwing program? If it is a video tracking program, I would think that exact launch monitor data would be more conclusive as to angle of attack.
Another launch monitor efficiency value known as Smash Factor (ratio of initial ball velocity to the club head velocity) should be different for the 3 groupings you list. Since hitting down creates more ball backspin, the Smash Factor would be lower for the Back of Low Point group and higher for the other groups.
Do you have any hard data from launch monitor testing for any of these pro golfers. Thanks for your information.
Regarding David Toms, I understand he is now working with Rob Akins for his swing mechanics.
http://www.golfdigest.com/instruction/index.ssf?/instruction/gd200406futureswing.html
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Birdie man
I understand that Vigay uses a higher lofted driver and fairway clubs because they are also built with very open face angles to accomodate his high swing speeds. In this way the club face squares up at impact.
If you are swinging properly, you will have a flat left wrist through impact because the centrifugal force created through the left arm will stretch and straighten the left arm-club assembly.
It seems as if we are debating about small differences in angle of attack which may not be measureable by eyeballing, only with direct launch monitor testing. The difference will show up in Smash Factor values for each type of impact style.