[Yoda]

This may be a stupid question, so please forgive my ignorance but what is the difference between Accumulator 2 left wrist angle and Accumulator 3 left arm and club shaft.

The #2 Accumulator is the Vertical ((4-B-0) Cocking and Uncocking Motion of the Left Wrist. The shortness of its travel time during Release makes it the true Velocity Accumulator of the Stroke. Left Wrist Motion is Clubhead Control.

The #3 Accumulator is the Rotational (4-C-0) Turning and Rolling of the Left Hand. In addition to its Rotational 'Overtaking' Power -- the Clubhead overtaking the Hands during the Release Interval -- the #3 Accumulator Transfers into Impact (6-B-3-A) the residual power of the Uncocking Left Wrist. All this while maintaining the Rhythm of the Stroke, i.e., the in-line condition of the Left Arm and Clubshaft (6-B-3-0). Left Hand Motion is Clubface Control.

Study 2-P (Lever Extension) and 4-D-0 (Release Motions).