Control the club face with your lead hand
The instructor says club face control is not the right (trail) hand turning over but how you rotate the lead hand. He wants the host to feel the bottom three knuckles of the lead hand drive down through impact; when he drives those three knuckles down, the club face closes. He demonstrates it with his own lead hand.
Channel: Micah Morris
Watch official source at 12:34Why this context matters
Coach demonstrates with his own lead hand while holding the club.