I just ordered a new front gearbox, too, along with a new Airtronics 94091 and a fresh servo saver. My linkage seems alright, but my stock servo is definitely glitchy. It stutters when it centers itself, with or without a servo saver and linkage hooked up. My other standard servos don't do this when hooked up to the same Tx/Rx system. I just don't have any mini/micro servos on hand.

Todd, are you running foams for the HT asphalt? What compound? Previous owner applied a bead of CA around the outside tread of the OEM tires to help reduce traction, which may work at the Pit. But I don't want to waste them racing onroad with it.