This morning's mail brought the first thing that I have ever bought through Massdrop. The package I got includes three colors: Atlantic (blue), Dublin (green) and Australia (red). So far I've just been trying out the Atlantic in my TWSBI Vac 700. It's a dull color; I can hardly decide if it's gray-blue or more of blue-gray. I knew when I ordered these that they were dull colors, and I'm fine with that. My taste has gravitated toward subdued colors recently.
Label reads: Made in Germany by Rohrer & Klingner Leipzig-Co. Shake well before use! To prevent dry residues drain the writing instrument after use and rinse several times with water.
Hmm, not sure I've ever got a bottle of fountain pen ink before with such explicit warnings. It does make me wonder why more ink makers haven't gotten into cellulose-reactive dyes, since Noodler's Ink has demonstrated how well they can work. When it comes to waterproof ink, Noodler's is the king and all the rest are the peasants.
Anyhow, this Super5 ink is indeed waterproof (as indicated by a quick dunk), and it feels smooth on the page. Maybe I should give credit to the TWSBI or the Rhodia pad, but the ink is behaving Just Fine so far.