Preserve wrist range with the trail-hand grip
The trail-hand grip should not inhibit radial deviation and the later unhinging motion. The instructor aligns the hand, keeps the thumb tucked, and uses an overlapping position so the wrist can create and release an angle for speed.
Channel: Todd Graves
Watch official source at 8:33Why this context matters
The terminology and demonstrated hand alignment make this most suitable for advanced golfers or coached practice.