[jason701802]

The type of drivetrain would have almost nothing to do the robots ability to get air, that has a lot more to do with the shape of the bot and the speed it can attain. If you geared one of those to get air off the bump, you would be geared so high that you would be able to be pushed around my almost anybody.

One thing i can tell you from experience with those tracks is that even a small amount of pressure from the side would completely lock up the system and leave the bot immobile (and by this years rules, that wouldn't count as pinning). They also eat up the available weight pretty quickly, unless they have been significantly redesigned, (and the only thing that looks different to me is the gearbox) a pair of those easily weigh 60-80 pounds, without any electronics.

Another thing to remember is that the force of friction is based only on the coefficient of friction and the mass of the bot, not the surface area.

Yes, this is someone from team of the original creators and users of this drive system.