You can either set up to a bunker shot square to the target for a lower trajectory and more roll or open to the target line with your clubface at the target for a higher trajectory and softer landing
The difference between your address position and impact position is that your clubface delofts one or two clubs, not getting the handle get in front of the ball on impact causes you to add loft and lose tremendous power
Use visualization to prepare your muscles to perform and enhance your course strategy