I outlined many factors that influence the outcome of a race and the return one gets. Can one get a substantial enough advantage over your fellow punters by becoming an e-x-p-e-r-t in a couple of factors, eg; trackwork and trials and tempo ..... and ultimately win your 10% to 15% on a consistent basis. I think the "Follow the Top 10 Sires" thread should have opened a few eyes. Look solely at form and you're competing with almost everyone.