Check palm wear for a palm-heavy grip
Wear or holes near the base of the glove's palm indicate that the club is being held in the palm. This large, less-sensitive area makes the clubface harder to feel and control than when the grip sits in the fingers.
Channel: SagutoGolf
Watch official source at 0:23Why this context matters
The coach uses glove wear as a diagnostic clue for where the handle sits in the hand.