Excellent concept...rake the balls up over your bumper and avoid all the bumper rule confusion completely!
However, please review the following thread in detail. It would appear from your video that your appendage (like those of many teams) would be illegal per current GDC rulings.
http://www.chiefdelphi.com/forums/sh...hreadid=100696
Hopefully, they'll figure this out...and soon.
Great work and good luck!