Colin , I have the Celestron Axiom LX 31mm ( Not the Lumios ) and it has been put up against a few 31mm Telemanglers over the years and we have all agreed that the 31m Nagler is better by about 5% , , thats the last 5% at the edge in an f5-6 scope and in a f8-10 they are identical .
You hardly see the 31mm Axiom's for sale anywhere because people that have them hang on to them
.
There is
definatly something in a 31mm , 82* eyepiece like the Axiom and Telemangler so I really think if you want the views grab the Nagler ,,, or
save a bundle and grab the ES 30mm .
Hard call , Genesis and Telemangler would be hard to beat tho
.
Your call buddy .
edit : Lo and behold , an ES 30mm 82* just popped up in the classifieds for $300 ,,,
Brian.