Couldn't you convert your ratings to prices and use those???

or

Turn method 2 around and put the 3 units on the longest price horse, or just back the longest of the three in the market (and maybe in bigger fields the 2nd longest also) straight out. Forget about the others.

What does that look like?

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Pixie

"It's worth remembering that profit isn't profit until it's spent off the racecourse." -- Crash