yea i find im geting really used to stock diffs ive been running them the most since ball diffs were a little tighter i found and i needed real looseness. im running the hpi motors cause ive noticed with the xrays the motors tend to fail more often. its a real tight track and now i think ive made some improvements to the car. i got a lightened body to improve acceleration and cornering characteristics and im trying a new toe in setup in the rear to hopefully give a little more punch out of the corner without a tendancy to spin and i'll stick in a quantom sport. its amazing on how much different it drives with a different body and my time has improved slightly. im also trying to make my own tire truer from an old eagle racing modified 2 comm lathe just sitting around, im trying to machine a spindel that will hold a micro wheel but im trying to figure out a speed control for rpm control of the lathe. i really dont wanna spend a small fortune on a tire lathe that i only use in the winter, and im tired of bummin off people at the track lol. thanks to all for help!