Geometry of the circle and how it applies to shot shaping .

[MizunoJoe]

Rather than interject my opinion I will ask a rhetorical question.

With a flat left hand we have the same RPM. For all hinges, but the "surface speed" or ratio of hand speed to clubhead speed is greatest for horixontal hinging, angled hinging is in the middle and the smallest retio for "true" vertical hinge. But if the ratio's are not the same how could it look the same from the center of rotation? It can't. So it won't?

Interesting, Hummm?

HB

The ratios for HH and AH are the same if the left wrist is level at impact and completely uncocked just past separation, in which case the hand and head speeds are not affected by Hinging type, because the full(HH) or half(AH) rolling wrist isn't speeding up the sweetspot through impact, but just rotating the shaft around it. The only thing HH & AH Hinging influences is face angle at separation. HH is more powerful only because it eliminates the layback component of AH through the impact interval, and so gives better compression, and not because the club head is faster.

[HungryBear]

The ratios for HH and AH are the same if the left wrist is level at impact and completely uncocked just past separation, in which case the hand and head speeds are not affected by Hinging type, because the full(HH) or half(AH) rolling wrist isn't speeding up the sweetspot through impact, but just rotating the shaft around it. The only thing HH & AH Hinging influences is face angle at separation. HH is more powerful only because it eliminates the layback component of AH through the impact interval, and so gives better compression, and not because the club head is faster.

No. Study 2-G

HB

[MizunoJoe]

No. Study 2-G

HB

YES!!! Half or full roll of the LW cannot speed up the club head, unless you do it with a cocked LW. However, A. J. Bonar agrees with you.

[HungryBear]

YES!!! Half or full roll of the LW cannot speed up the club head, unless you do it with a cocked LW. However, A. J. Bonar agrees with you.

Please provide TGM and HK Ref. to the points you are trying to make because what you are saying makes no sense without them.

HB

[MizunoJoe]

Please provide TGM and HK Ref. to the points you are trying to make because what you are saying makes no sense without them.

HB

Grip a club with a level left wrist and extend it out in front. Now rotate the left wrist and see how much the club head moves. Make sense now?

[HungryBear]

Grip a club with a level left wrist and extend it out in front. Now rotate the left wrist and see how much the club head moves. Make sense now?

Now I see- BUT - Hinging doesn't work that way .

HB

[MizunoJoe]

Now I see- BUT - Hinging doesn't work that way .

HB

Yes it does - Hinging is clubface motion in the Impact Interval.