I have my first ever gymnastics competition (Level 8) later this month. I will be competing a roundoff back handspring back tuck. The only problem I seem to have with them is my roundoff. I can't seem to tumble in a straight line when I do a running hurdle. It's my roundoff that's the problem. I can do it perfectly from a power hurdle or a step hurdle, but when I run into it I go super crooked for some reason. Are there any drills I can do to make my roundoffs straight?