Ok, argumentative is fine. I tend to just speak my mind, too! So long as you know, I really appreciate being included and the banter, this past year's time I've probably spent more time reading and checking for new posts in your thread (and a smattering of others) than playing games or any other form of entertainment.
As far as the MA900, it was a surprise blip on my radar, honestly I miss the mids and soundstage. And when I said it was duller, thinking back I noticed that mostly when I swapped straight from the MA900 to K712, not the Q, and by itself (not comparing side-by-side) I felt that I was missing extension and liveliness watching Dredd on netflix, straight out from my DSS, it was still good and I enjoyed adding about half of the DSS' bass boost, but I didn't actually notice that the MA900 was dull while gaming and A/B'ing with the Q701 (both powered with the Bugle Boy Amperex tube). During THAT A/B test, the main take away was that the surround spacial cues were more obvious with the MA900, feeling a little of that money rub once I had that thought, and it reminded me of how easily surround came to the AD700... It was easy to concentrate on the surround and little details, which in turn made me remember you saying the AD700 and K701 were so godly at that purpose and sense of air because of their lighter bottom-end, which fit with my feelings about sub-bass compared to the K712 and desire for boosting more with the streamed Netflix movie... but perhaps concluding that the Q701 therefore was "more fun" was a stretch of associations. I will stick to my guns though, and predict the future, that once you hear the K712 (and find it to be a fantastic all-rounder, assuming that the X1 is still-yet further on the scale towards "fun"), especially if you get to hear it side-by-side with the Sony, you will agree that the MA900 is more on the "competitive" side of the scale (though more "fun" than the AD700 and possibly just enough so to be an "all-rounder").
Hopefully that made sense... Stream of consciousness, in a tired state, but I've been mulling over the ideas since the 3rd listening session with the MA900.