Now that the Dunas has been inked with Black Swan (using a syringe to fill up an empty cartridge), I love it and use it often. Applying a little pressure produces quasi-calligraphy as shown, although the empty spots are where the ink didn't keep up with my writing; I don't mind though. Far from ruining the nib (it's not a very expensive pen, in any case), it has now become a very wet fine (shows off the ink nicely) and does not dry out when left uncapped for a few minutes.
Paper towel test revealing "black swan" with a halo of "Australian roses". A pile of steeped hibiscus tea in the center for comparison. I don't drink it often, but it's a real treat when I get around to making it and I like that it seems like something one of my literary heroines, Mma Ramotswe of the No. 1 Ladies Detective Agency, would do - sit on her porch in Botswana with a steaming mug of hibiscus tea (as a change from her usual bush tea, that is).
Now I am all "burgundied" out... off to rest my eyes with some blue. I have a couple of letters I should get to writing!