Good stuff Crash. It actually sounds similar to something I was doing a while ago, it went something like this:

1.Races 1500 and upwards
2.Only look at the first 4 lines of betting from Fri Coureir Mail.
3.Back the horse that had the most recent start.
4.If equal back the shortest PP

The theory being that if the horse was going OK the trainer would back it up reasonably quickly. The PP market will sort out the class/fitness/recent form etc.

This was actually showing a profit of 25%+ over a year or so, but it went through a pretty bad patch and I cut my bet in half, as you say some of us just won't stick.

Apologies for not posting it another thread and taking up so much of yours.

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Jose'.