Biggest problem I see is that most authors say that it won't feed. No! This species does feed, and throughout the last 20 years of keeping marine fish I have had much better luck with Regals than with those damn potter's angels!
I think you have just proven my point (having had more than a few angels die in your care in 20 years in contrast to their actual captive lifespans... see Frakes 1991 for some amazing/inspiring captive angel longevity records). And you still haven't mentioned the age of your present champion (months I suspect). Aquarium lore and wives tales talk of these fishes not eating.
Real world experiences in aquarist however speaks of them slowly dying of a dietary deficiency (they do eat, yes!). I talk of this a bit in ... more.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.