thanks imrob.............very informative............still would be interesting to hear from tekin 10.5 users with mmp speed controls........would like to know their timing setups for the motor and speed control and the effect it had on their truck. do not want to miss anything that could possibly help me get faster lap times....... I am used to a 7.5 so thinking I might be able to handle a fired up 10.5. thanks again.