I drive the Rc8t and even the RTR RS i bought has the big bores all the truggys do now. If you get the pre built RTR or the half built CE make sure you rebuild and locktite for sure. Other than that the CVA's bend but I just bend them back and they're fine I'll even race with slightly tweaked ones. The drivetrain is tough in this thing even with slop in it.... If you have the money buy the kit over the RTR tho for sure. You'll be happier with it!