The Küelox #500 nib flows fast and smooth like a Sable brush, and requires very little pressure. A light grip and fast strokes is all you need to get good lines, which requires a little getting used to, and until then, some lines will wobble, but they will still be very alive. Not a nib for noodling; ink is laid out thick as far as nibs go, but still offers a pretty broad range in line weight. Overall, it keeps you from getting sucked into ornamentation, and instead forces you to think about the broad shapes and only the very necessary of lines.
Which is a good thing.