Thanks for sharing Tone. I'm not into metal particularly but I appreciate it as a medium. And it's true that the fans are totally devoted. It's got much more integrity and soul than a lot of other genres.
I think everybody should once in their life attend a metal gig. Mine was Slayer a few years back. Totally mental sonic assault on the senses but the fans are ultra gentle really.
Reign in Blood is an album I occasionally fire up and it's immense. Heavy, fast and technically brilliant guitar playing.