I just bought the last available Desiderata Mercury flex pen. It's purple heart and cherry wood, not my ideal combination, but I didn't want to miss out on owning of these beauties. I also threw in a tin-coated zebra G and Nemosine B nibs. There is very little on FPN about these pens. What should I know?
BTW, I've been using a dip pen for the past month or so, just long enough to know it's something I want to pursue. My other pens are a Lamy 2000 EF/F, a Conklin Crescent-Filler 25 and a soon-to-arrive (hopefully) Sheaffer Balance .40 stub.