Well, I do love the mjolnir/gung combo, but it also seems to have a bit more bass than neutral which doesn't totally synergize perfectly with the lcd-3 (+ lcd3's midbass). The combo also is very crispy/resolving but not too aggressive in the highs (being SS) so that does help the LCD-3.
I'm really appreciating the LCD-3's more with certain genres; but not everything. I'm bobbing my head to some heavier songs a bit more than usual. It's a fun and laid-back headphone and I can see why it's one of the most popular. Good blend of fantastic technicality and musicality. It's not the type of headphone I'd want to have first and foremost, but it's definitely a good easy-listening/ kick-back and relax phone that is a welcome complement to my HD800/HE6.