The Set Up
We'll cover these elements one at a time and try to provide complete understanding on why it should be done this way. Get it out of your head that your stance should be open and the ball way forward (as pictured above). Remember about the principle of simple. Keep your feet parallel to your target, maybe slightly closed. Yes I said closed. If you set up open (pictured below) you would tend to swing inside on the backswing and then from inside on the downswing, hitting behind the ball and catching the ball on the upswing. "Skulled" and fat shots are in your future. Being parallel to your target or slightly closed allows you to swing a little outside the target line on the backswing and then inside the target line on the downswing, cutting across the ball. Perfect for hitting a bunker shot.