The underhanded approach; hitting a short pitch shot with exactly the right force for the intended trajectory and distance is a technique that can only be learned by experience. However, a useful drill is imagining throwing a golf ball underhanded with your right hand, to a spot short of the flag, before you actually play the shot. Then simply try to reproduce the weight and feel of the action with the wedge in your hands.
Choke the club for a better feel; On short pitches, such as when you’re trying to float the ball over a bunker, or to a tight pin placement, choke (grip) down on the club about an inch. This will enhance your feel for making the correct length of backswing.
Imagine a flagstick in the landing spot; a lot of golfers leave long pitch shots well short. If that’s your probable, try programming the following visual key into your normal preswing routine. Picture a flagstick implanted in the ground at your interim landing spot – whenever you want the ball to pitch before rolling to the hole. Ten aim at the top of the pole,. You’ll find that ball gets well up to hole more often.