According to my research, the only way you can hope to profitable back
more than one nag/race is to pick long priced horses. With the shorter
priced horses, you are just backing against yourself, ie, you are guaranteed
of having backed at least one loser. It's not so bad with the outsiders, because you only need put a little on them for a good return, and the longies
tend not to crowd each other out.
just my 2 cent's worth.
Larry