[Al Skierkiewicz]

I interpret the bumper rule under these paragraphs...
I. Each set of BUMPERS (including any fasteners and/or structures that attach them to the ROBOT) must weigh no more than 20 pounds.
J. BUMPERS must be designed for quick and easy installation and removal, to aid in weighing and inspection.
K. BUMPERS must attach to the FRAME PERIMETER of the ROBOT with a rigid fastening system to form a tight, robust connection to the main structure/frame (e.g. not attached with Velcro). The attachment system must be designed to withstand vigorous game play. All removable fasteners (e.g. bolts, locking pins, pip-pins, etc.) will be considered part of the BUMPERS.

If a multi-part attachment system is utilized (e.g. interlocking brackets on the ROBOT and the BUMPER), then the elements permanently attached to the ROBOT will be considered part of the ROBOT, and the elements attached to the BUMPERS will be considered part of the BUMPER. Each element must satisfy all applicable rules for the relevant system.

The references in each paragraph seem to apply to both a single bumper assembly and one that is applied in parts to the robot frame. I would think your bumper would pass inspection if all other sections of the bumpers rules are satisfied including that no hard parts extend into the corners of the bumper.