[Cory]

I'm curious as to why you chose to use 3 motors per side.

You're going to be traction limited in low gear at 4 FPS, whether you use 2 motors per side, or 3.

You aren't going to push anyone in high gear anyways, so the only benefit from an extra motor I see is slightly lower current draw (I assume you're dropping the center wheel, in which case it doesn't even matter).

Seems like unnecessary effort, and extra weight, for not much of a tangible benefit.