hes running rubber tire jaco blues, paragon, its not real high traction, just good traction, carpet gets rolled out and put away every race day, (one saturday a month plus every other wednesday) stock chassis and top deck, is was fine with the setup it had, then one day, slight roll, then more and more, went from 1 groove front plate back to 3 groove, 2mm under plate, blue springs all around, went to blue rears to free it up. went from 3/4 compound, to 2/3 to nothing. even went to a DNA1 body. we may have to go to a heavier shock oil and lighter springs or 6 degree hubs. of course I have all the extra parts with me, so he's S.O.L. for a couple of weeks.