[Mike O]

6-B-3-0
"Accumulator #3 is Rhythm control" and later he writes "Do both (horizontal and angled hinging) alternately until you see the distinct difference in the Rhythm and clubhead travel of all three of the roll procedures".

The amount of accumulator #3 motion - influences the clubhead travel - the distinct and different clubhead travel as felt/perceived by the player for each of the three hinge actions is Rhythm.

Clubhead travel, Rhythm - relate to RPM - rotations per minute - the number of angular degrees in which a "thing" travels in relation to a 360 degree circle. Take a short shot where the player hits three shots - all with the same RPM of the hands - each one the player uses a different hinge action - that's one example of different clubhead travel, different rhythm, different RPM's for the clubshaft and the same RPM for the hands.