Okay, I've been trying to get tips and help for both the changeup and the curveball now.... The changeup tips helped me, but since I pitch in flat ground for the moment I will start to work more on my curveball. I have used different types of grips, including the normal one, the "beginners" and the knuckle curve. I find that the beginners and the knuckle curve give me the most breake. But my for my delivery I need to go down completely while throwing the knucklecurve in order to get more movement, but when I don't go down completely after throwing it, I don't get that much movement on it. I was also wondering what exactly is the movement I have to do with my wrist in order to get movement on it. Thanks for any help!