LOL, thanks. Though it would be hard to factor in the possible change you mentioned in the HE-400 thread of the driver tweaks in newer HE-400s. Or the fact that D5000 will shortly no longer exist And I wouldn't feel right doing an objective review of anything without either HE-500, LCD-2, HD800, or HE-6 to use as a reference for the top end.
Eh screw the high-end line; why even bother worrying about them in a comparative review if the people reading it aren't worried about spending the money for those in the first place (at least not yet)?
As for possible driver tweaks, one possibility is to email or PM Dr Fang Bian and ask if his engineers did in fact do something like that; if even he says no, then obviously nothing changed and all the nitpickings in the other thread about how there are "versions" are all just psychological.
As for D5000s, why not, I mean, Denon made and sold a metric ton of em (so lots of second-hand availability long after this discontinuation), and probably there are still a lot of them left in stock in different retailers. Also just the fact that a lot of people have bought these means it gives many who are looking for a complementary mid-fi can such as HE400s or HD650s a good reference point.
And lastly, you are the only one here who regularly writes published journals for each response