Hi everyone: I've just registered into this forum as I have a doubt about iron-gall inks: I currently own a waterman carène, which is the best pen I have and has a great sentimental value, as it was given to me as a special gift. I'm trying to find a permanent ink for taking some notes i'd like to review on the future, and, from what I've read, iron-gall inks are permanent ones. I like the R&K Salix one, as I've seen it on this website reviews along with other inks. My doubt is: will my carène be harmed, or corroded if I end up using this ink? It has some kind of a gold cover on the nib, hence my doubt. And, a second one, but closely related question: Should I get a different pen for iron-gall inks? A TWSBI, for instance? Thanks for your advice