On the way down, many amateurs try to control the shot by making an arms-only swing. This causes them to lunge toward the target with the upper body, resulting in poor contact and a weak shot. The lower body should initiate the downswing. The hips should unwind and push toward the target to generate power. Imagine there's a pane of glass in front of you. On the downswing, try to touch the pane with your belly button while keeping your head back.

Gain more power

Photos by Joey Terrill
Golf Digest January 2006