any RX can burn. The V2 gearboxes (PRO's) make it unlikely. Some tips, before you install the gearboxes, slide a sprocket on each gearbox and check to see if they're easy to turn by hand. At this point, it is the easiest time to apply a dab of grease to each gear and spread it out by hand turning the gearboxes. Once everything is assembled, check turning the sprockets again before you try to drive. Make sure that it takes the same amount of force (There should be some resistance, but not much) to turn them. If you do grease the gears, you probably want to make some splatter guards to keep it off of the electronics.
Doing all of that should prevent frying the board. But if you do, the RX-18 is only $20
That link is for a track tensioning system. It's not really needed on the Pershing, as HL/Taigen modeled the Pershing's front suspension with the automatic tensioner.
Last edited by Roboticus_Prime; 12-15-2015 at 07:13 AM.