Son is new to pitching at the HS level. He has a good 2/4 seam fastball and decent slider but we can’t seem to get an effective change up going. He has big hands so we have been tinkering with circle and 3 finger change ups. The problem seems to be that when he grips it firmly he can control it but it is too fast (i.e. -5 MPH off fastball velo) and the deep/loose grips seem to sacrifice control and hangs, making it easier to pick up. We would also like to develop a pitch that runs in, i.e. has some slight screwball-ish tail to it.
Should we stick with the circle change and keep working at it? We know it takes practice to get right but prefer to focus on one grip and then work at it until we get it right. We would appreciate any advice on how you developed your change up to save us some time as well as trail and error.