Can you post a pic? When I recently bought my '04 Jay Flight, the brackets on my range cover were bent so that the cover would not lay flat. I took the top off the range, unscrewed the brackets, straightened them with pliers/vice grips, then reattached them to the range, and drilled an extra mounting hole to secure them to the countertop. The cover works as designed now (and has better support), but you still need to be careful and train the users how to properly lower the cover (needs to lifted in the bracket slots, then tilt it over to cover the burners). I neglected to instruct my "other" user, and alas, it started to bend again, so I straightened it again and sent someone to school. Hope this helps.
2004 Jay Flight 21FB
2001 Yukon SLT