When DD started pitching 5 months ago I found this video and promptly had her try to imitate this girl's motion and drills. Now after a crash course in IR I am looking at it again and thinking it is what is considered here to be a bowling motion which will inevitably lead to (yikes!) D3. You can see the hand position they are going for in the drill starting at the 00:45 mark. Any comments or opinions?
YouTube - Shelby Softball Pitching Practice warmup fast drop change
YouTube - Shelby Softball Pitching Practice warmup fast drop change