[Max Lobovsky]

Try wrapping a pair (one from each drive train) of tires with something radially. I understand this is kind of a dumb solution, it makes more sense to just get wheels or tires with the right treads, but its easy, cheap, and quick.

At first we tried 1/16" steel cable, but it wasnt big enough to lift the wheels off the ground. We probably shoulda have tried again with thicker cable, but that stuff is REALLY tedious to work with (think 100+ ft per pair and something like 130 individual wraps). So we had some zip tries lying around... They are excellent at reducing cross-wise friction (it turns on high gear now) but they did take away significantly from traction in the direction we need. Regardless, we can climb 6 inches with our two drills and 12.5" skyways, so im happy.