wesmip1,

I read on a forum, may even have been here, that someone claimed to have won big by betting horses on Betfair that were under the TAB's prices.

Even though you've tested it with 1033 selections for an excellent result, it's only been for a period of one week. You mention "ïn the long term" - have you tested it prior to the past week? If so, have you recorded the results?