Hi guys, just ordered a new Summit VXL for my son - haven't touched an RC car in 20 years. Will probably run it mostly in grass/driveway etc. Planning to run on NIMH. I want to make it as controllable as possible, curious as to your suggestions. Planned on a TBR bumper, fan heatsink, new servo. What about smaller
pinion? Center diff? Rather keep him from doing wheelies and backflips to start - and he's a maniac on his go kart.