This idea was proposed in the 40s or 50s by a cat named A G Illich. All they had then was the daily double, so he would divide the will pays by the winner's price and look for a discrepancy. He called it his "secret play". I had his book when I was in high school. It makes good sense, but I never used it. I am curious to see how it goes for you.
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Deo Vindice
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