Control the rate of face rotation to control impact
The instructor stresses controlling the rate of face rotation in the putting stroke: if you can't control the rate of rotation, you'll never control the face at impact, and he says he has never met a player with good face control at impact but poor face rotation. He attributes face rotation to how you grip the putter, its weight, its length, and how you address it.
Channel: Club Champion
Watch official source at 9:38