Help 4s or 2s in series?

[GorillaMaxx360]

are you running the stock chassis.

I would still go with the dual setup personally because it will have a better cg because the batteries will be lower to the cars battery trays. Also as far as weight goes i would put the servo and other small things you need on the opposite side of the motor i know this will not make up for the whole motors weight but it will help even it out. but i do think with the 4s pack on one side it would not only be a tad more heaver it would also have a much higher cg.