One of the adjustments normally recommended for throwing a drop ball is to shorten the stride so you can lean out over the front of it. This sets up a somewhat downhill angle that helps get the ball to break downward. There are certainly those who say you shouldn't change the stride length or body angle when throwing different pitches, but the truth is for most of the world these small adjustments make it possible to get the proper movement.

Getting the proper lean, however, is tougher than it might seem. Often times instead of leaning out the pitcher will bend at the waist. She feels like she is forward and over the front foot, but really her weight is more centered. A cue I've found that works is to tell the pitcher to look down at her T-shirt. If there's something written on it, tell her to get the first word or words out over her front foot.

The effect is to help her get her upper chest out over the front. If she does that it will set up the proper angle. Then (if she hits the release point) she will be able to get the sharp downward break.