The single point of failure scares me too, but aside of that, I'm just scared of your robot.
I wasn't lucky enough to see your 2006 bot in person, but when I saw you guys in Denver (and for a little while at Championship) in 2005, it definitely left an impression. This has several features that reminds me of that bot, merged with a couple features that remind me of a design we didn't chose (but with a way to solve the issue we had with it). I'm definitely impressed again. Pity (assuming the process stays the same) we can't be in the same division in Atlanta.