Build your stance from an athletic balance point
The coach sets the stance last by being an athlete and finding the place where you feel you could push off the ground. He says that with posture set you won't step too close, because standing too close, too far, on your heels or toes all feel off balance - so you find the grip, set posture, then build the stance.
Channel: PorzakGolf
Watch official source at 5:25