He's an insane drummer, Tim Alexander. He never gets any credit, lol. Les Claypool takes all of the credit from Primus but I honestly believe that Alexander is more talented... and that's a pretty difficult thing to say when you're talking about Les Claypool! The scariest part is that Tim is using a DW5000 pedal, the worst for speed really (compared to an Iron Cobra or a Speed King anyway). He uses double bass when recording, two full drums, but for his live shows and in his tutorial videos he uses one... it's nuts.
But it's not that difficult when you put it into context... if you watch my videos on You Tube I'm doing triplets on the bass that are almost that fast, he just does them much, much longer, lol. I think the lower half of my body would fall off if I tried to keep it going that long. But I can't use a double bass, I'm too hat-heavy for it. I use my hats as a central point of my timing and it'd be impossible (for me anyway) to do that while working a double bass.
Quote: "Being a good drummer isn't about being fast with bass pedals."
Very true, but being good on the bass while maintaining top form on everything else is very, very difficult. Rockband is primarily a hands game, but there's more to drumming than just hands. Controlling the hats with one foot, hitting the bass with the other, while doing something completely different with your hands, means your body is doing three very, very different things at once, and Rockband doesn't really train you for that. But it's a start, and that's more than anyone can say for Guitar Hero, hehe.