This is what we went with for the performance test that was last Friday. The long screws you see were temporary efforts for bump switches for the performance test. Also, we had to raise the Handy Board on wooden blocks because we mounted a Cadmium-Sulfide cell to the bottom of the chassis (under the black spot in the middle of the chassis). The CdS cell is used to detect light intensity; for the robot, it is used to read an LED start light. By the way, we passed the performance test with flying colors.