Our solution was to make a level that fits onto a convenient surface on the mount and converts that angled surface into a horizontal one. The AVX Level is 3D printed from durable PLA plastic to custom fit an angled block on the front of the AVX mount. It attached with included double-sided foam adhesive tape. The "arms" on the side of the AVX level ensure the level goes on perfectly square. The bubble level is easy to read and recessed in the AVX Level plastic body to protect it. The AVX Level is easy to see even when the mount is fully assembled.