I think either my 2wd SC10 is sabotaging me, or my 4x and I are fighting. By the end of the first run, I could feel the 4x slipper was slipping again, even though I took some drastic measures on it to keep it from happening. Retightened, went to try it again, and the servo (1015) made nothing but death twitches. Tried it in 2 other trucks, it was dead for sure. Ran some packs thru the old faithful 2wd instead, since I didn't want to mess with switching out the servo at the track. I'd rather do it at home with a Pacifico and the AC on... Back to the ol' drawing board...