hey guys i just got a jrxs and was wondering what do i need to do to it for carpet racing, what are these pooky things or bk brackets are they for the rear shocks, and has anyone cut every other tooth off the belts for less resistance. any set up tips for carpet or tips on this car would be appreciated. i read this car is loose in the rear end is that true. thank you all. later. oh does anyone know how this car compares to the xray 04