Yoda.. when discussing accumulator #4 I am a bit surprised at the lack of Latissimus Dorsi (Lats) muscle emphasis as per 2-M-3. As per the equation for a Class 3 Lever
-Fe x De = Fr x Dr
the greater the effort, the greater the force. In particular accumulator 4 has the greatest Dr or resistance arm. The radius being greater than the other 3 accumulators would put accumulator 4 as a premium speed inducer. So it could be said that either the Pivot is essencial, or the movement of the Latissimus Dorsi of the left side is the key generator of speed.
The Right Shoulder drives the #4 Accumulator (the Left Arm) Downplane. Since the 'lats' pull the Shoulders backward, not forward, I would suspect they contribute little to the action. Can anybody add something here?
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