Ok guys, same servos same everything but radio and buggy. the reason I thought it could be the radio is that the m11 wheel is much tighter and the throttle trigger is very tight. Much more so then the dx3r. I am not saying anything bad about the d8 it is a very durable and good car. I have done many different setups. Two of my good friends are sponsered HB drivers. They have worked with me a lot on setups.