The best bunker player I ever saw in person was a professional I worked for 30 years ago. He was taking bunker lessons from the late, great Johnny Revolta.
Revolta had told him to use a baseball grip for his bunker play as it should be right side driven...
When I was a swinger - slinger I was a horrible bunker player. Now that I am hitting with my right arm, I am hitting some bunker shots that I can't believe I was able to produce.
Bunker Play = Hitting Pattern???
Worth a try. Works for me, so far.
Kevin