I'm going to give 25585 credit for making this point before, but I wanted to confirm it. I just picked up the 30mm APM UFF. It presents its field as if it is a long FL Morpheus. I'm not suggesting it is the same design as the Morpheus. I'm just saying that when you take in the field of the APM UFF it is like you are looking through a Morpheus.
In the 120ED it performs very well and sharp close to the edge, but there is a little falloff in the last ~10% or so. In my 80mm Access it did not do as well falling off in the outer 30% of the field ... but the scope was not at equilibrium and the edge performance improves as the scope acclimates. I hope to check that again tonight if I get a chance.
The sky background is very clear and clean with this eyepiece. Stars are really sharp - no bloating detected - just pinpoint lights. Contrast seems very good. I spent most off the night jumping from the 30mm APM at 30x to the 9mm Morpheus at 100x or the 6.5mm Morpheus at 138x. The Delite with or without the 1.6x Nikon barlow can fill the gap between the 30mm and 9mm.
I found the field extremely easy to take in with glasses if the eyecup is folded down and there were zero issues with blackouts. When I did a daytime test I came away feeling it was one of the easiest long focal length, wider field eyepieces I have looked through, so it really can serve double duty if you are looking for a nice 30mm for daytime observations.