[Yoda]

That rocking right shoulder section of the video is Tommy demonstrating the Flying wedge "drill"....it's part of a "drill" (in the video it's a demonstration from an acquired motion stroke, not to be confused with a total motion stroke).

Sorry, DG, Tommy clearly is demonstrating a Total Motion Stroke. His Backstroke moves to the Top (Right Shoulder high / 10-21-0-1), even to the End (10-21-0-3), well beyond the 'Right Forearm parallel to the ground' position (Acquired Motion Top / 12-5-2).

That said, I certainly can understand your interpretation. In other segments of the video, e.g., when demonstrating Extensor Action, Tommy just as clearly isolates the action of the Arms and moves them independently from the Top, i.e., with zero Pivot transport. He leaves his Body in a full turn and pumps only his arms, i.e., no 'shoulder rock'.

The video will speak for itself. We are presently working hard to prepare other video (Blake/Trolio) but will post this one soon. Once it is up, members can draw their own conclusions. As always, we will welcome all comments, including yours.