Hi Dale, Is there any process that might include scribe cutting on the underside of the warped corners and heating to bend as necessary or is it cut and glass time as required? Have you checked with the manufacture for any help as it appears that the panel needed to be put in a fixture and clamped to prevent warpage during the cure process? On the other hand, you could just dura-glas the top to a flat surface mate to the adjacent panel.01