The design was used decades ago by Zickos and Meazzi.The groove hoops are silly. Just another gimmick to create the frenzy to have the "latest" gear. You mentioned death metal. Well it that's your idea of a good time as Groucho Marx said, then you sure don't want those hoops. They WILL be DEAD in 2 minutes playing your kind of music. 1.6mm might as well be aluminum foil.