I tried my first fill with Diamine Registrar's ink (a nice blue-black)... it leaked like no other from around the nib/feed. I reseated the nib and feed and found it was then leaking from under the nib... I guess its too "watery" for this pen. I then set the pen aside in frustration for a few weeks.
Over the past few days I've been trying Noodler's Eternal Brown, a wonderful copper color. It writes like a dream and doesn't leak from under the nib at all... *BUT* if I let the pen sit unused, capped, for 12 or so hours it totally gunks up the feed.
I have had to remove the nib and feed twice in the past three days to clean out all the "clotted" ink gumming up the works... it still somewhat writes a bit before the cleaning, just very dry with frequent skipping and the occasional drop onto the paper, so as one can guess I need another ink.
I feared that perhaps the cap wasn't "sealing" tight enough and allowing air to dry the ink in the feed/nib... but a small ring of paper I put at the top end of the section showed signs of rubbing when I capped and uncapped the pen... it seals fine, so mechanically my pen is working... but the inks just aren't working with it.
I'm begging all of you Wahl-Eversharp knowledgeable types... Please help me with an ink recommendation. What have you had luck with?
I'd prefer a somewhat "bullet-proof" ink, and would love to give the Noodler's Black a whirl, but I'm afraid of wearing out the section and feed by constantly removing and reseating it.