Grip down on the clubshaft to make it shorter in length. Although this isn't necessary, it gets you closer to the ball, makes the club lighter, and puts you into a less-than-full-swing frame of mind. You may find this helpful. Play the ball in the center of your stance or where your swing arc bottoms out. Playing the ball too far back in your stance can cause a topped or bladed shot. Playing the ball too far forward can cause the notorious chilly dip.