A while back I bought a bottle of Osmiroid ink at a flea market for about 35-cents. I figured I could use the bottle if nothing else. Knowing to stay away from art and many calligraphy inks, I had generally put Osmiroid as a brand in that category, right or wrong. I've kept it sitting around for about a year myself but started to dump it recently--but thought better of it. After all, it's labeled for fountain pens and still looks pretty good inside. I figured I might try it in some of my less used pens or just keep it around for dipping. So, just curious about recent experience--anyone use old Osmiroid Free Flowing Black Ink lately? Problems? Thoughts? Thanks!