You're being naive. Cheating is a part of the game, so players/teams hide is better, and there is alot of cheating that goes unnotice. But to think "is not a part of the game", you really are being naive. I don't think it's part of the game, however, I know it happens. Looking for an analogy, I'll go to football. On any given down, if you look, you'll probably see a hold. Does it get called? I think, most times, it doesn't. The gross ones probably do however. At least the one that have an effect on the play do. I remember a few years back Kerry Wood was throwing really well. His curve ball was just sick. The umpire had to check his ball a few times, IIRC, for scuffing or substances. There was none but when you see a ball break that much, it's up to you (the umpire) to check. Did Kenny Rogers have that type of pitch? In my mind, no. Good pitches but not ones I would check for doctoring on.