Action vs. Motion....the pivot doesn't stall....4 barrel hitter and 3 barrel swinger have the same startdown...easier to push a cannon ball that is rolling than one that is stationary...
Hitters pivot...period.
You're misinterpreting motion as action. The motion, after the brief right shoulder thrust, is solely a result of the right triceps. But if you spin the flywheel, you will be mixing pulling and pushing, against which Homer warned you!