Are you saying the best nip it with the ball back, or do they still get some sand?
Nip is correct.. It's pretty hard to hit down on the ball when it is up in the stance and you are taking the club strait up in the air. You have to get face on ball to impart spin, but depending on the shot you might want to explode the ball with sand to let it roll out. You rarely see them show this style of bunker shot on swing vison on PGA Tour coverage tournaments. The reason is most people try to nip the ball further up in there stance and hit lazers or extrem fat shots because the have released to early. Try it! then make your judgement.