Im 5'7 and can grab the rim with to hands but can't dunk it. i think my height might have somthing to do with it but I know I have a problem with my technique. I jump of two feet. and i am good with the drop step part but i cant find a good way to swing my arms with the ball in my hand. when i don't have the ball in my hands and swing my arms to jump i go much higher. Can you please tell me a good technique to swing your arms with the ball in your hands.