A friend of mine swears by this way of betting --- and some of the figures he produces are pretty amazing. Would like to endorse Enjay's observation that by manually working out the bets you can spread them over venues, dogs, harness, thoroughbreds, even on different days, and mixing up place and win bets --- and you don't even have to stop at four bets if you are confident enough.

How often do you see the favourite run a place with the dogs At one venue on Thursday night the first eight favourites were placed. Returns might not be great per race; but parlay them up....

Have never seen your formula before, Shaun; but it certainly has possibilities. Have tried it a little on paper. Looks good!!