Anyone out there playing with HPI's E-Firestorm? I got on when they first came out (yes, before the Flux!!) I'm trying to get the most speed out of as I can. Haven't gone Lipo yet, but soon! Trying the Mamba, high power NiMH's and pinion changes so far, and I'm up to 40 mph on GPS. Anyone know where to get smaller spurs for them??