Well, if you got the velineon already, I'd go with that, and if it heats up more than you'd like, consider getting the FLM transmission case. Not sure if a faulty ESC can cause the motor to heat up or not. My rustler has been doing nothing but speed runs and on road driving lately. I haven't actually been to a track and ran it off road, it'd probably heat up like crazy as well after 5-10 minutes. Check out the Medusa afterburner motors and try and sell the castle motor. The Castles do have a reputation of being an inefficient motor that runs hotter than most others.