[Jeff]

When one talks of blasting the left arm off the chest with the downswing pivot action thereby releasing power accumulator #4, doesn't the left arm have to move both downwards (towards the left foot) and outwards (towards the ball-target line), and isn't the direction of left arm movement determined by the movement of the conjoined hand unit, which is itself directionally moved by the right forearm/PP#3 which traces the straight plane line and also moves towards the aiming point?

Jeff.