You obviously have no idea of what I'm talking about. Grand Declaration isn't about speed at all, it's about technicality. Mastodon's drummer isn't good because of speed, but because of the absolutely amazing and complex drumming that he can perform while keeping time. In fact, his drumming is so good that it turned an album I would normally think was ok into a masterpiece. And Converge's drummer for Jane Doe (I know his last name is Sandoval, I forget his first name) makes some of the most atypical rhythms and drum patterns while keeping time with the best of them. He makes Meshuggah's drummer look like Lars Ulrich (if you think that Meshuggah have a bad drummer, you are deaf). Also, if you'll notice, I said that Dave Lombardo got better after his stint with John Zorn. Before, he focused on speed mainly. After, he focused on more jazzy rhythms, just listen to Fantomas - s/t and drool. I don't think that simply playing fast makes you good, otherwise I would suggest other drummers like Nick Barker. Jan Axel Von Blomberg has shown himself to be the world's best drummer by using such diverse styles on drumming. He has used militaristic drumming on Grand Declaration of War, a more synchronized industrial style with The Kovenant, a more jazzy laid back rock style with Winds, and a more complex odd time signature style with Arcturus.