OK, I'm convinced. I plan to have my dealer do the BB 904 on my bike next month. I have a 790 and primarily want more low end torque. The dealer (D&D Cycles, Pensacola) offers a choice of pistons. Either the standard Weisco or their own designed slightly higher compression pistons. I assume the higher compression produces a little more hp, but low end torque is my main objective. What would be the pros/cons of the higher compression pistons?
