Ive deleted my last post because the figure were off. I'll redo them.

Lets say you played every bet with the same amount and were targeting away wins with a $2.60 average.

strike rate(SR) of 38.5% to break even(well +0.10%)
SR 40% = 4% gain on bankroll
SR 43% = 11.8%
SR 47% = 22.2%
SR 50% = 30%
SR 55% = 43%
SR 60% = 56%

So you need to be around 40% at least to see any value, which i dont think is to crazy. And you dont need to go much higher to see some fantastic results.