Professional gamblers do use models and it's not VIP Club, I can promise you that. Prediction Machine, Team Rankings, Predictem, Oddsshark, Foxsheets, MasseyRatings, Accuscore, Sportsline, are among power ratings and models that have become enormous in recent years for bettors. Joe Duffy, the top bettor on earth, breaks down which ones win and which do not. Duffy is CEO of OffshoreInsiders.com