[Daryl]

does he cover hinge action?

Yes. Frequently as description and demonstration including Hand/Wrist Manipulation. Unfortunately, no analysis of component combinations which afford Hitters to automatically Angle Hinge or Swingers to automatically Horizontal Hinge.

When he "Hits", it's easy to see the Angled Hinge and when he Swings, it's easy to see the Horizontal Hinge. It leads me to believe that he certainly adopts different component variations for Hitting and Swinging.

When he demonstrates Chipping using Full Roll or Half Roll, he uses Hand Manipulation via Swiveling to apply Horizontal Hinging.

So, although he demonstrates Hinging, and applies all of the correct procedures at all times for the Shot, he fails to explain when the Hinging is the automatic result of component variation selection or Hand Manipulation. He understands that the "Roll" in the Swingers Sequenced Release is produced by Body Turn as he fully demonstrates. Unfortunately, in application, he appears to use an "over-swivel" to mimic a Horizontal Hinge. He has no hesitation to Roll his Hands through the Impact Interval.

I'm simple minded so that drives me up the proverbial Wall.