[GaryVoshol]

Have you considered adding the bumpers to the bot yet? If those are 8" omnis, it looks to me as if the frame member is 12 or 13 inches off the ground. The bottom of your bumper will be no more than 11". Bottoming out?

And a more general question which should be of interest for all teams - what will keep a ball from rolling more than 3" under the frame in this kind of setup?