Woods is a sharp guy in terms of goals. I'd put the odds at over even money that he had an arrangement that lowered the percentage payout to his caddie on some scaled basis as Woods winnings went higher
Its the same thing that happens in real estate commissions...the most expensive properties get the % negotiated downward. Woods is no Santa Claus.
My wife had an interesting observation the other day regarding the *** scandals...linking them to the possiblity that there was steroid use going on that affected behaviour in other ways. I do recall that there was some link between Woods ans some Canadian doctor who was involved in PED's. In any case, maybe his compulsion was not completely natural.