billbo911 - Team 1351's minibot had the exact same problem with falling off the pole. I'll try to implement changes similar to what you did; hopefully we can avoid catastrophe at Calgames.

We already came close to destroying our extremely fragile Minibot at the Silicon Valley regional. It fell off of the pole twice during matches, where nobody could catch it - the .090 aluminum that forms its chassis barely survived.
Mark (or anyone else) - Other than increasing magnet strength, how can one reduce the wheel slip? I know there are obvious options like changing the tread material, but I'm wondering if any other techniques could also work.