I suggest waiting for the top to settle into a nice spin. The Sidewinder can be bouncy, thus making the trick harder right after the boomerang. Take a rest, relax for four to six seconds and then start the walk down your arm. I think that should make it work a lot more smoothly. Remember, as you perfect the trick, smooth is the key. You want it to look like a nice stroll, not a herky jerky stumble.