Your hands are too active while chipping.
You want a low, spinning lob shot or you need better control over the distance and direction of your iron shots.
You want to develop a better feel for pitching.
You have a hard time making flop shots with your sand wedge.
You do not know how long the length of your swing should be when using wedges.
The ball flies unpredictably or bounces too much on the green while chipping because the trailing hand turns over the leading hand too quickly.
You flick your wrists while chipping which causes you to lose loft and the ball flies further than desired.
You have difficulty chipping and the ball flies left or right of the target.
You have difficulty swinging in the sand due to a poor weight distribution.
You lose power when pitching due to excessive hinging of the wrists. This causes your swinging arc to become too narrow.