Shaun, thought you might like an up-date on your idea after 503 bets all in, no filters at all.

Bets 503
Hits 328 (65.21%)
Rets $508.98c
Win $5.98c
POT 1.188%
Av. Divi $1.55c (Best Tote as available Sportsbet)

Personally I think this is very promising considering no filters at all from such a simple idea.