Demonstration of 10-20-C

[Delaware Golf]

I think this clip is an anti 10-20-c demonstration. As I read 10-20-c correctly the trigger is when the sholder STOPS

Right Shoulder Triggers the downswing per a swing stroke pattern...a la Sally Little and Jodie Mudd. Per 2-H, "The geometry of Shoulder Control deals only with the Right Shoulder, there are no guide lines for Left Shoulder control of the Right Shoulder."