I have tried smart diffs in the front and center. In offroad the center is the only one that makes any sense to me, but I dont prefer either. I gave them a fair shot and tried them for a while and practiced with them, but just never liked them. If you Blip the throttle around turns than I would say they are not for you. The reason I say that is When you completely disengauge from the throttle your car is totally loose. If you are more of a "Squeeze the throttle driver" than it might be exactly what you are looking for. But my personal oppinion is that they hurt more than they help.