Grip checkpoints: parallel Vs, thumb, fingers
The coach lists grip checkpoints: the creases (Vs) formed by your right and left hands should be parallel to each other and working together; the right hand should sit on top of and cover the thumb rather than laying off to the side; the grip should be secure; and the club should sit in the fingers, not the palm. He calls gripping in the palm a serious fault.
Channel: SagutoGolf
Watch official source at 6:59