To be honest, I don't think it's all that unusual. Frustrating for sure and I sympathize with you, but I think it's pretty typical of horse racing. I think Miz Ruffian has the right idea. The rest of us try to make it a reasonable logical thing, but it just isn't and we refuse to accept it and keep on doing the same things (which is how some people define insanity.
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Really, I think there are parts of handicapping that are logical and parts that are not. The problem is figuring out which is which.
