Spin a bunker shot: sit lower, stay narrow, less sand
To add spin from a bunker, sit a little lower, add a touch more wrist hinge, and stay narrow (don't get wide). Feel faster through the shot and take a little less sand so the club skips underneath the ball.
Channel: Dan Grieve
Watch official source at 6:50Why this context matters
Advanced option for a severely downhill bunker shot to a firm green.