I agree Scotty, it is a problem that I thought about and I just really can't think of a way around it. Best that can be done is to have good interaction from players in the books. When you sign up you have to register your account so the auditor can tie those numbers out to what the book sends. As for the payment, I am not quite sure how much it would cost because how much of a trust account a book would use is uncertain. The interest in the accounts could pay for some of the costs, but unless a number of books are involved the costs probably will have to be somewhat paid by the books and/or players. It wouldn't take a huge amount of auditing, just randomly done audits should do the trick. As people say many if not most of the books have earned a level of respect and therefore auditors don't have to spend every week scrutinizing the numbers.