Thanks! Those exact gearboxes aren't Supershifters. The Supershifter works for this, but needs a little bit of tweaking on the mounting plate (By tweaking I mean drilling two holes and countersinking two more). Also, encoders are mounted elsewhere in the drive. There's a handy-dandy mechanism that will measure left side and right side speed directly off the ground, rather than off the wheel speed. If one really wants to add encoders to the drive system as well, it WOULD open up some interesting traction control ideas... I'll have to look into this.

Who says we're not?

But seriously, our team is looking at going green as much as possible from the chassis up, and implementing as much bamboo and other woods as possible. The weight is unbeatable, same for the strength.