Turn shoulders on a tilted angle to find the ground
With the spine tilted toward the ground, the coach keeps his shoulders turning around that fixed tilt so the shoulders move on a tilted angle, which he says makes the club find the ground. He offers it as a diagnostic: if you have trouble with contact and aren't finding enough ground, look first at getting enough tilt so the shoulders turn on a tilted angle.
Channel: SagutoGolf
Watch official source at 2:13Why this context matters
Presented as the reason the club bottoms out consistently in the drill.