Emphasize low point

There could be several causes for a player “fatting” the ball. Rather than going the mechanical route, something that seems to often work is explaining to the player that the low point of the swing is 3-4 inches on the target side of the ball. They are usually conceptual victims of trying to scoop or “get under” the ball. It also gets them on the road to understanding that except for driver and putter, the club is striking the ball on a downward path, the shorter the club the steeper the attack angle.