Release physics in hitters

[Jeff]

I am trying to understand the release physics involved in a hitters action.

I will first start with a swinging action. My understanding is that the swing is primarily powered by the pivot action (right shoulder thrust causing the left arm to move with the pivoting upper torso initially and then independently when the pivot action subsides) - release of power accumulator number 4. That left arm pulling force causes the left arm to pull longitudinally along the clubshaft at the grip end of the club - via the hands. When the hands turn around the endless belt pulley wheel, that apparently causes the clubshaft to accelerate and the clubhead starts to move faster than the hands via the mechanism of centrifugal forces (release of power accumulator 2).

Now consider the situation with hitters. A hitter is primarily powering the swing via power accumulator number 1 - straightening of the right elbow via triceps action. This force is applied to pressure point 1 and apparently drives the primary and secondary lever assembly as an unit, and the force is applied radially to the clubshaft (instead of longitudinally). If correct, then what causes the release? What causes the clubhead to move faster than the hands? Is the endless belt pulley-accelerating phenomenon in play in this hitting action?

Jeff.