I just have to say, I"m a little... not on board with the manner in which these tests are run. You can't separate them into genres without being very clear about what albums are being used. You might say you're listening to black metal, but the difference between Passage D'Hyver or Ulver and, say, Dodecahedron or Lunar Aurora in terms of production is monumental. Not all metal albums are produced equally or even optimally, and rating a headphone's quality in a subgenre is impossible unless it's laid out what albums were used.
Metal is a unique genre in that an album sounding good doesn't necessarily mean the speakers are good simply by virtue of the WIDE variance in production from genre to genre, band to band within that genre, and album to album from that band.
these are "grain of salt" tests to me....but it is very nice to have a thread comparing (a lot) of headphones where someone talks about metal and not the latest diana krall piece of garbage, or some obscure classical release ;) or for that matter listening to Tool and calling it the metal test (although i do love Tool)
i appreciate all the efforts from everyone and plan to add my own data when i have some time!