[Yoda]

One of the aspects of this swing that is interesting to me is the action (or lack of) of the right foot...thru impact the right foot is still planted to the ground and appears to roll to the instep as the swing progress thru release and into the swivel up. Any others?

Contrary to popular opinion -- and many misguided methods of years past -- the Right Foot and Knee do not 'kick off' the Hip Turn. In fact, it is vice versa:

The uncoiling Left Side -- with its opposing force exerted against the ground -- pulls the Right Knee forward and the Right Foot off the ground.

The Knees support that Motion . . .

And the Feet accomodate.