Thanks to everyone who replyed to my post, the fiqures that were posted were my actual bets with IAS only. I kept the records of the TABS to see what the difference was and which one represented better value and posted them just as a matter of interest to whomever found the comparision interesting. If I sat at the computer during all the races and took the best value of the TABS and IAS it was possible to add an extra 8 to 12 units on top of the final IAS fiqure.
I was asking in a general fashion, if anybody else has compared their own results with various betting agencies and who came out on top % wise? I use IAS as they are reputable in my eyes and don't close accounts down or limit your wagers, which I have heard happens with other corporate bookies should you win on a consistent basis.

Partypooper and xptdriver - I agree
Anchor - I'll do that when time permits.
Monkeyinjapan - Those names sound familiar I don't think I mentioned them above?
Kennyvictor - Appreciate those fiqures, very helpful.

Thanks everyone
Nanook.