To all you non-believers

:
We drove around for a few solid 30-minute intervals with the drive on linoleum. (After each time the drive was very hot though. ) Granted, it's not carpet, but hey, when it was working, it didn't have overheating problems after a match. We went to, and performed very well at, a "playdate" the Saturday before ship date on the NASA-Goddard field, and the drive worked beautifully (until we had an issue with bending an omni on a plate). So that leads me to believe very strongly that there is not a fundamental design problem so much as a newly-acquired mechanical problem.