What really is the advantage of the supposedly new battery placement in some of these retrofit kits like the 12R5.1 LiPo? If the design was meant to move weight backward or forward there had to be easier ways, as far as I can tell all that this will do is very slightly change the X and Y axis moments of rotation, while the Z axis (the one that involves the car actually rotating around a corner, would be nearly unchanged. I don't buy the explanation that the shock geometry is better, or that its stronger or anything else, I think this is a shiny new toy that Associated meant to liberate you from $150 of your cash and not really go any faster. It also is making the car longer, which totally undoes the moment-of-inertia claim by moving the heaviest bits (motor, rear tires, axle, buklheads) further from the cars center of gravity. I would spend my $150 on something that I know will make me faster, like freshly trued tires, new bearings, batteries, SiC diff balls, a balance board, or gas in my tank to go practice and test-and-tune.