Anyone have the stats on the increase in profit betfair would give over best tote dividends? I know BF seems to throw around the 17% figure, however, i also know that alot of this can come down to the longer priced runners boosting this.

If you are looking at the pointier end of the market (under $10), whats a realistic figure? If you had a system showing a 4% loss at best tote, would Bf be enough (after commission) to kick it into profit?