I think of the primary lever as being like a swinging door . You push it closed with right arm thrust but it swings closed. With cf . The. Cf is in the door not the thrusting device.
In hitting we thrust the entire primary lever. But don't employ cf to initiate release of 2 or 3 . We use the muscular drive out of a right arm throw. The nature of the throw , the linear nature that is, changes with the location of bright elbow . Push vs punch vs pitch. Pitch and hiting perhaps being dangerously to active right arm pulling swinging.
Threaded Mode
