There are 50% POT systems, which have logic attached to them. I also agree on keeping your powder dry and waiting for a decent bet. Of all the books I've read on punting, the biographies of famous bookies, stories about the turf, one thing that's common to a lot of these stories is that ONE BIG win. Contrary to popular opinion on here, I believe that if you have a system that selects a really good lightly raced horse you're in with a good chance. ALL of my good systems are centred around lightly raced horses. One of them has only a few bets each month in Vic, but when your filters include a decent S/R, Metro, lightly raced and up in class, then you're not going to have many selections are you? Think Sincero ..... there's many others like that and at good odds too. But you have to be patient and wait. I'd rather have one decent bet each week and follow a logical system than backing neddies here there and everywhere. Also a longshot system, which there are many marketed, is absolutely fraught with danger ..... miss a winner and it's goodnight for a year or so.

If you want to put up some of the filters you're playing around with, don't be specific, and I'll give you a heads up if I can. Sort of like the Weights and Prizemoney and the variances between NSW and Vic. I've always liked a horse with a really good Win S/R, plenty of good winners, but plenty of losers too until I looked at interstate, NZ, and even o'seas horses, and also horse going up in class. There's more than one way to skin a cat. Few bets with a systems that picks out a lightly raced, good horse, going up in class will do me.