Feel the right shoulder go behind you, not left under chin
Working on his backswing, the speaker shares a swing thought he now prefers: instead of trying to get the left shoulder underneath the chin (or over toward the right side), he simply feels the right shoulder going back behind the body. He says he finds it an easier swing thought, offered as a personal feel rather than a mechanical rule.
Channel: PorzakGolf
Watch official source at 0:27