My Trusty Pelikan
I prefer fountain pens, though I did learn to master flexible dip pens like Gillotte. Fountain pens allow you to draw for long stretches without dipping into a bottle and there are no sudden blobs of ink on your nearly finished drawing.
Which brings me to Ink.
I used to use FW waterproof India ink, but the new owners changed the formula from carbon to acrylic. I was in dispair as ran low on my old supply of the good FW, but finally found a great,, very waterproof and flowing India ink. It's made by Dr. Ph. Martin's. I tried several of the Dr. Martin's inks and the most waterproof (if that matters--it does to me, since I color my work in with watercolor) one are these two:
Dr. Ph.Martin's Black Star HICARB
Dr. Ph. Martin's Tech 14W Black
Both are available here:
AOE Art Supply
I've tried every other Waterproof India Ink I could get my paws on and none were truly waterproof. They also had serious flow issues.
My pen may not work for your needs, but I thought I'd let you know.
I think the simian just came up the driveway.