i used the weight of the servo to counterbalance the batteries.im not really sure where it ends up next to the tub but it was specificly placed.the chassis is the same width as the stock tub but it is narrowed from both sides of the chassis instead of only the battery side like the AE chassis.i wanted everything to be symetrical.i dont think that the top deck is very low on the FT because the top deck sits higher than the camber links from what i can tell from the pics.