I use Bet Angel which is very geared for trading, not that I use it for that. I read their blog, and the consensus of opinion, seems to be, that no one's making anything trading, despite all the bells and whistles in software?

Here's a comment from their forum today, " ...don't know about other traders but I have almost given up scalping the pre race markets. They have become either too volatile or it takes ages to get money matched, by which time the market can move against you. It seems much easier to sit back and wait for a developing swing trade. i.e trading fewer markets and waiting for the right move. This of course needs a high level of patience as you are doing nothing for a lot of the time." (tweebie1999)

That's why if you ever 'cotton on' to a new approach to punting, keep it to yourself! If it's a profitable idea, it won't remain profitable for too long, once everyone jumps on board.