If you are purely waiting to back overs on your ratings, then you are reducing the number of bets. And the number of profitable bets. And therefore the amount of profit available. If your rating system is profitable, find the flaws that leak the extra profit, rather than just go for overs.

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"God made man in his image". He then went to great lengths to ensure that each and every person was unique. God then pondered and said "I will call these human, as very few will rise from the herd to be called individual" http://www.propun.com.au/racing_for...ttons/quote.gif