[Mathew]

The primary lever assembly is driven by creating a pressure against it. There are only two points that you can create a pressure to drive that lever assembly. That is acc/pp4 (swinging) and acc/pp1(hitting). Remember the right arm is just a piston and as such the elbow location determines the usage of that right arm. If you are in a pitch location - the right triceps can only apply extensor action which is a non-accelerating thrust - the straightening of that piston (right triceps) ain't creating a pressure against the lever assembly....there is no way it can! it just works against the checkrein of the left arm.