Looking very good! Regarding the feeding slots, here is a close up picture at one of the kickoff events showing the feeding slot. I don't know if you can get a good pushoff of the disc in the slot or not. If possible, I would recommend testing with a slot closer to the real field just to double check the action of the disc with the slot and your robot.
http://www.flickr.com/photos/kimsrob...57632447784120