As we are all looking for a solution, and I have to say...it is awesome to have our own Escape Research Lab for Dometic! Thank you all for continuing to tinker, this info is definitely making it to Dometic.
I did receive a tidbit from the guru's in Germany. Apparently the higher rated fridges have more insulation in the fridge box, especially the door. They are sending me a couple of these doors to try...but unfortunately I don't expect to see the hot days needed to properly test the door this summer. Maybe I can send a door to someone in Texas...if it is still hot there
It is really great news to find the door leak (thanks Alf) which is a fairly easy fix to gain some cooling. If a better insulated door adds a couple of more degrees...we getting there!