Ball back to spin, ball forward to chunk-and-run
Play the ball a little farther back when trying to create spin and stop it quickly. A farther-back ball position takes less sand, which is what you want for spin. Moving the ball farther forward takes more sand and produces more of a chunk-and-run bunker shot. For the spinning shot, the stated ball position is about two balls inside the front heel.
Channel: Dan Grieve
Watch official source at 1:28