2013 US Open 1P, Deuel vs. Hall. Corey is very close to being hooked where he has to apply a touch of masse to throw the stripe into his pocket. Corey asks referee Ken Shuman to clean the cueball. Justin is complaining that you can't move the cueball (in this delicate situation) because if its put back even a tiny bit out of line it will be an advantage to Corey. Ken disagreed and marked the ball, cleaned it and replaced it. Corey shot the stripe in his hole. I think Corey would have made the ball anyway, but was moving the cueball the right thing to do in this situation? They were all laughing in the end.