Shaun, just thought you may be interested, your idea after 1000bets:

Bets 1012 Hits = 637 (62.94%)
Rets. 990.58
LOSS 21.42
LOT 2.17%
Ave. Divvie $1.56 (best tote as available)

This is all in, all conditions etc. it's not bad, and frustratingly close to a winner , but I've dissected it in every which way and just I can't get it into profit. But that is from a very basic data base.

The win, whilst still not a full 1000 bets (recorded) still hovers around 10%LOT