@gdnrbob @steakster
seems to me the best advice of all, for all those pursuing system improvements -- in a system one is already enjoying -- for whatever reason, is...
try it in your own system -- ideally without irreversibly committing to the cost of the item -- then be honest with yourself, can you hear a real improvement? if not, move on, just enjoy the music
other people might, or say they do... but that hardly matters, right?