Anyone tried the Levenger Obsidian stub nib? Would be interested in comments.

I've got one (rather, my wife does), and it's an outstanding nib! I'd say that it has softer edges, too, so it's a little more user-friendly. I think that I posted a writing sample on my blog with it once. If not, let me know and I'll post one here.

I've got one. It's a smooth stub and easy to write with. I feel that there is some, but not a lot of line width variation and I would call it more of a medium stub than a fine stub.