I keep my eyes open for ways people cheat, and I heard something interesting on the broadcast between vietnam and USA. Announcer said that the vietnamiese were tapping the table (rails) to slow down the cb for position. He said it should be illegal, but it isn't. He said it was an effective way to slow the rolling ball down, using either the fingers or the chalk. They weren't using much force at all to tap the rail. I always thought this was a "nervous tick" habit, but could it work? I don't think you could do anything about it in leagues, but it would be interesting to confront someone if it does work.