Stugots, your Betfair win divvies totals $476 - I presume this does not include their 5% commission?

If this is the case, then by my calcs Betfair's advantage over the TAB reduces to from 22% to 15.9%, which one would more or less expect after the TAB's 16% take-out. Still, 15.9% advantage is not bad, particularly if one's turnover can reduce Betfairs commission.

However I suppose its not inconceivable that some bookies who offer generous features as outlined by Party might match, and in some cases even be higher than Betfair's prices.