Weakening the left-hand grip opens the face into high shots
The coach explains that changing the left hand so it weakens the grip opens the clubface, which produces high, ballooning shots. He ties a student's ballooning ball flight to that weakened left-hand position.
Channel: PorzakGolf
Watch official source at 1:27Why this context matters
Diagnosing a student's ballooning shots during a setup lesson.