I have a little lefty pitcher on my team. He is about 5'10" and 165 lbs. He has a pretty good arm, throws anywhere from 85-89 right now but has a really hard time throwing a curveball. Once in a while he will get the right spin but most of the time it spins like a slider. We've worked on getting him to stay on top of the ball, keeping the same "body" as the fastball, and even had him try to over exagerrate getting on top of the ball. Like I said, sometimes it works, most of the times it doesn't. He has really small hands and I'm wondering if this could be part of the problem? Does anyone have any tips or has anyone dealt with someone like this? Thanks in Advance.