You'd need to test it by comparing the strike rate of firmers and drifters that start at the same price. As an example, do starters that firm from 6/1 into 4/1 win any more races than starters that drift from 2/1 out to 4/1?

I also have no bias either way but do know from experience that when the big firm is on, that's the lay bet I want to stay out of.

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Pixie

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