hi all: I have used Iroshizuku inks and Waterman inks in my ST Dupont Palladium pen. I love that pen, very high quality, smooth writing. It seems that the Iroshizuku inks - which I love using!!! - are much wetter than the Waterman inks; for that matter, I might try Montblanc inks.
I suspect (I don't own a Japanese pen, Pilot, Sailor or other) that Japanese inks might be better suited for Japanese fountain pens than for European fountain pens... given the fineness of the Japanese nibs.
Is this a false assumption? Anybody out there have another opinion?
Thanks in advance for sharing your thoughts.