I've been using this for over a decade. I hear coaches during games yelling at their kids, "nothing in the middle!" then saying, "how is she getting in there?", or "how are they so wide open?" to their assistants after it works. One difference I made was this. The screener can get galled for a moving screen(yes, it has happened to me), so I have that player call for the ball to show the refs that she is "posting up".
