I use the Pilot P-700. For day-in, day-out reliability and long lasting ink supply, it works for me. No problem with bleed-through in my Moleskine. Happiness.
I use fountain pens especially Pelikan. Of course, bleed through is a big problem of Moleskine paper but it appears less when you refuse using blotting paper. Furthermore you have to chose various inks. I think only a few make bleed through so it is not impossible to use a fountain pen in a moleskine.
I have been using Moleskines for a couple of months, I have found that .1mm pens like Rotring and others give a nice feel while writing, plus I like the sound of the pen on the paper. It has a very “anti-high tech” feel and sound. The ink drys fast and is permanent.
I use a Pelikan M400 with a fine nib, and Waterman black ink – no bleed through to speak of.
Of course, it kind of depends on your style, but I think the right nib/ink will be fine.
I’d like to try the Noodler’s Legal Lapis – it’s permanent. It’s waterproof once it’s dried on paper, but water soluble until then. It’s designed for fountain pens.
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