[brainanator]

I've liked my dual batt savage a little more now that I made a 4S balance adapter for 2 2S batts. Lets me charge twice the amount of batts in the same amount of time.
I agree it would make it way easier in figuring out the motor placement, and give a pretty good left/right balance.
You're choice in the end, the single batt is tempting if you can squeeze it somewhere.