[EricH]

Originally Posted by bighead1358

wait im confused ur "hopper" wont be touched because no part of the robot may go beyond the bumper zone so nothing will make contact other than bumper to bumper.

Methinks that you haven't seen robots rocking under forces of acceleration, sudden and otherwise. It's happened that two robots within the bumper perimeter of the year hit above the bumper zone when one or the other tipped.