Smallball it the only thing that I can really get to work, but I can't say I really understand why it does.
In Home Run parks, you can stock a team with players that fit your park and have BPHRs on their card. I believe BPHRs vary between 0-8 per side on players cards, so there is a wide variety of who will and who will not work.
But BP singles are different. If you are playing in Forbes 57, why is it beneficial to play guys like Cobb, Simmons, Lindstrom, etc...who don't hit a lot of HRs compared to other players? For the most part they all have 5 BPSI per side, so it's not like you are taking advantage of your park the way you can with BPHR.
Why wouldn't a team in Forbes 57 with a bunch of mashers with a lot of natural HRs perform just as well, or even out-perform a team with less power. The BPSI chances between both of these types of teams should be about the same, shouldn't they?