Use the helicopter drill to rehearse the shoulder rock
With your arms extended, rock back so the lead shoulder moves down. Return the shoulders toward level, then let the lead shoulder move upward through the impact area; the instructor uses this body-supported motion to bring the club out of the ground and carry its momentum through.
Channel: Danny Maude
Watch official source at 5:34Why this context matters
The 'first part of the helicopter drill', demonstrated first with a chip.