My twelve year old son is learning to throw a circle change. He previously threw a palm ball as his change up. Anyhow, he is throwing it with the same mechanics as his fastball. (He throws both his two seam and four seam with backspin.) However, when the c-change gets to the plate is drops fairly rapidly. He is being taught to throw the "circle" at the batter as part of the delivery. My question is, is sinking common with the circle change or is my son doing something that is causing this. I know the drop is a good thing, just wondering if this is par for the course with this pitch. He certainly is excited about it.