Jonathan Chown (JChownGolf) demonstrates how to eliminate early extension and stay down through the golf ball. He identifies four critical components: a neutral grip, adopting 'old man posture,' maintaining hip depth using a chair drill, and covering the ball with the right shoulder.
A neutral grip (2.5 knuckles on the lead hand) prevents standing up to square a closed or open face.
'Old Man Posture' places the center of mass over the balls of the feet, preventing the body from rocking back to maintain balance.
Maintain hip depth by feeling the lead hip 'close the door' (move backward) during the transition.
Cover the ball with the right shoulder to ensure rotation and compression through impact.
The 'Belly Button to Left Heel' swing thought is a powerful feel to synchronize weight shift and rotation.