Short story, gave up the previous attempts.
...About a year after the last post, I mounted a Neo onto an irrigation olla with some sphag. I played around a bit with watering (internal vs. external), temps (heat mat) and light. The surface grew slimy and moldy at times (adjust, adjust, adjust) and the new roots were sliding around. I gave up on the internal reservoir and treated it like any other mounted plant. It grew fans, I saw some new roots. I pretty much just let it be.
Fast forward to present, I saw this
thread. I figured I might as well take a good look.
And with the sphag removed.
On the last pic, you can see all the short failed original roots. Hasn't bloomed for me yet (it has evidence of an old spike) but that's the last thing on my list for this experiment.