Just folowing on with this one after a bit more observation. Every man and his dog knows the principle now, i.e always back overs re: you have to win overall in the end.
But what I've observed is that there is VERY little value to be had at the lower end, to the point where is useless to try really, but very good overs can often be had on betfair when you restrict it to say $8 + e.g. manytimes $12+ can be had, now of course its a different kettle of fish as the S/R is much lower, much greater patience is needed but it seems that it's got much greater potential.

I'm not sure if 7-1 ($8) is the optimum cut off or not maybe its $6 at this stage I don't know, but the principle seems sound.

So in other words say, Pro Pun Rats, or WI6, or IAS top 6, but only take $8 and above when at least 120% can be had ANYWHERE inc. Betfair.......... any thoughts?