[Cothron Theiss]

Originally Posted by Chris is me

That defeats the whole purpose of the drive. Without four traction wheels, there wouldn't be a good pushing mode that resists turning. It would just change from all Omni to 2 traction 2 Omni, which isn't much of an improvement.

But are the back Colsons actually providing traction when driving forwards? Looking at the model, it seems that the Colsons wouldn't have enough contact on the carpet to make a difference, but I'm not sure how much the wheels would sink into the carpet.