FQ06, were you able to make it out to SCVRC? I didn't see anyone with a Tekno (Except me). I ran my SC10 4x4 4 gear and the performance improvement was just what I was looking for. I had real altitude control now and I cut laps faster than my Tekno SCT410 (before the 4 gear mod, my Tekno always turned laps .5 to 1 sec faster). I believe the 4 gear mod is what will push the SC10 4x4 right back up there with the Tekno/Losi's. Right now my SC10 4x4 is lighter, more nimble and accelerates/brakes better than my Tekno. The only place it was lacking was altitude control, there were certain jumps I couldn't stay on the throttle as long as with my Tekno because the nose would come up and no amount of braking could get it back down. Now a slight tap on the brakes levels it right out.