i just got an rc8 and put a mamba monsster 2650 system in it i am geared 17/46 its very fast and i like the speed but the tires are looking like balloons when i get it to full throttle i am racing on a dusty loose outdoor track tomorrow and wondered if i should go smaller on the pinion or if this is something i should just adjust by throttle on radio also i am running 5000 front 7000 center and 5000 rear on the diffs. i am very new to 1/8th scale and would take any tips i can get thanks in advance.