Upgrading brushless system

two 4s1p packs wired in series would give me 8s2p right? If so, 29 volts is a little too much. This is b/c the 36 cell controller cost too much. I would be looking for two 3s2p packs wired in series to make 6s4p. I don't want too high of a voltage. I'm calling Maxamps this morning to see what batts I should get, then i'll look for motors.

Maybe a 6s2p? But i'll check w/maxamps