Well, Nile is the only real Death Metal I listen to occasionally. I love fast technical music so why stop at DM when you can listen to good grindcore and noisegrind? One of the most excellent bands on planet Earth are The Kill fom Australia:
<sigh> As I've mentioned before, this whole 'technical' idea of pop culture's is about as substantive as the music it's meant to describe. Certainly playing quickly, with a lot of notes, is not remarkable. And it doesn't matter if it's some rock or metal 'shredder' or 'grind core'. It's the same ridiculousness.
Ewww, jesus, they really ---fouled up beyond all recognition--- up that Mortician recording by mixing in all that bass guitar. Have to say also that the whole 'scene intro' thing is about the same as a lot of doom. Just no.
That Necrophagia, musically, is just thrash metal. Now, Necrophagist, that's a somewhat different matter....although they still could do a lot more. Nile is similar but since they scoop the mids so heavily it doesn't really matter what they're playing. You can't hear it. Whereas at least with Necrophagist, you can hear everything.
Vis: by mainstream, I mean relative to the genre. Lots of bands have done world tours for years and were quite ugly sounding. Of course, even (or perhaps particularly) Chuck transcended the genre. Cynic certainly did, though they jumped the shark on their latest.
The gutteral vocals are done by Masvidal on the recording, but on tour (second below) they had a chick (also on keyboards) doing them.
[youtube]http://www.youtube.com/watch?v=0jbRFKM9vd8[/youtube]