Well I have now got a 31mm. In fully cloaked form its eye relief is just OK without glasses, much too short with, though the eye saucer is as much to blame but Celestron's claimed 22mm is overstated.
Increasing its eye distance helps as it's a design that recesses the eye lens by moving the barrel up while it's armour jacket stays down. Therefore extending eye distance, creates more space between saucer and face.
I was disappointed in the Axm. LX's short eye relief, its eye lens being nearer barrel top than an ES82 30mm. Perhaps such focal length and AFOV are only going to give short eye relief no matter what design. I presume the 30mm Meade UWA will be the same.
Both with and without glasses, moving my head provided no SAEP kidney beans effect. Exit pupil was easy. Both features I appreciate. Without glasses, ironically, was an enjoyable viewing, the FOV can be seen by moving my eye but not head. With glasses I lost 10% FOV at a rough guess and was less comfortable.
So keep or sell? Too expensive to only use occasionally, my APM UFF and Panoptic 35 can rest easy. I learned that my TV Genesis focuser is strong..... Saw a 31 Axm LX on ebay US for a high price, unsure what to ask for mine as new old stock, or what it's ranking is compared to Luminos, T5, ES82 & others - little out there except a few comments comparing favourably with the Nagler.