[O.B.Left]

right hip back, right forearm up

There's more to this statement than meets the eye, or the ear for that matter. It comes from the heart of TGM. RFT, Divergent Vectors, Hands To PIvot etc etc etc. And of course , as Lynn has noted the Macdonald Drills from the 1920's.

The PIvot and the Hands do not travel in the same direction in Startup. Or the Backswing. In Startdown they do, in the ideal given a "ground up" sequence deal, but not the Downstroke or Release most likely .

Its a long story.