Yes your 1930/5 on 4s is insanely fast, I have had rotors brake loose with way less rpm's. The 1940/5 on 3s is pretty mello by comparison, your crt must be super whako! Mike cronin is a firm believer that its best to have a lower rpm motor with more torque to get the job done and that has rubbed off on me. Anyway what I wanted to ask you was is the crt5 with an extended chassis a good basher, because I might want one.