Thanks
I have found these figures now. The tote figures had been previously posted on this forum. The Betfair figures came fro Duritz on the punting site. Compared with best tote <$8 there is a slight disavantage on Betfair(10-20 cents). They are par at $8-10 then 23% advantage at $30 tote and 75% at $50 tote. Beton