Is there any good guide to how to decide what numbers to feed tunefs/newfs?
Is interleave good or bad?  How do I know?

I'm thinking it might be cool to take advantage of these features, but I don't
know enough about them, and I'm not sure where to look...

(A similar one: Does making fewer inodes make a file system have more space
for files?  Make it faster?  I can't tell, but my filesystems rarely get
above 20% usage of inodes, so if it's good, I could easily do it.)

-s