Skylab, thank you for taking the time to write such a thorough and thoughtful review. I think a lot of people were waiting for your review with baited breath, dreading (or in some cases, hoping) that you would expose some fatal flaw in the LCD-3s--kind of like what you did with the Ed. 10s. But...nope, you just confirmed the majority of the early impressions: This headphone appears to have substantially improved upon the LCD-2s in every way.
I sold my LCD-2s on the expectation that the 3s would improve upon the three areas that I found most lacking on the 2s (on my equipment): The lack of comfort (due to the clamping pressure), a lack of soundstage dimensionality, and a somewhat polite treble presence. Based on your review, it seems that the latter 2 have been addressed to some extent, but what about the clamping pressure? You say that you find the pads much cushier and more comfortable, which sounds promising, but do you feel any excessive force on your cheeks or jawbones during long listening sessions? Some people have said that the headphone is too heavy, or that the headband causes the headphone to slide around on one's head. Have you experienced any of these problems, or do you see it possible that a significant number of people will?
Also, I hadn't really considered the Audeze Edition DAC/Amp before because of its choke-inducing pricetag, but your extremely favorable view of it makes me think it should be on my "end-game" equipment list (if there ever really is an "end" to this hobby). Can you specify which input(s) you used on the Audeze Edition, and is there a significant difference between them (especially USB vs. Coax)? If you've reviewed this unit separately somewhere, can someone please link me? And how does it sound with your Edition 8s?