Okay, so it's the first night of a new sport pattern and all we are told is that it is 47 feet in length. During our 10 minutes of practice, I notice all my equipment is hooking late even though I am playing up the boards around 15-16. Naturally I use a maroon scotchbrite to dull up my 3 strike balls with a noticeable improvement. I quit sanding before the practice ends and proceed to shoot 804 over 4 games. We end up taking 29 out of 30 points. Before I leave, the guy I was bowling against tells me I totally messed up his game by burning up the heads. He said no one else in the league was using dull equipment and if I continued to do so I would more than likely end up getting my A$$ kicked in the parking lot. I just laughed it off and went home. How crazy is this? I don't believe I violated any USBC rules by sanding during practice. Any thoughts?