Re: Chris Adler
I think he's an extremely solid drummer, I just for some reason don't get excited when I hear him playing. I've seen them live and, as someone stated earlier, he couldn't pull off everything live. It was a major disappointment.
As for the complex part structure, I was a Meshuggah-head in high school, so I guess Lamb's part structure and variety don't strike me as being that out-of-the-ordinary.