I just pulled my Online Slope fountain pen out of my pencil case. It had been sitting in there for weeks, if not months, untouched and inked up with ESS Registrar's, an iron gall ink. The converter has dark residue stuck all along its inside, but there was a little bit of liquid ink remaining. So I did the unwise thing and "dirty filled" it with the same ink again, without cleaning pen or converter first. And it just writes. Time will tell if that's just the ink in the section or if the pen just doesn't care about being forgotten with iron gall ink inside. It's a cheap pen I can always just buy another one of if needed, but so far it is the one that has been coping with iron gall ink and almost no maintenance whatsoever.
So if you're looking for an affordable fountain pen that doesn't mind ESS Registrar's or Diamine Registrar's iron gall ink, the Online Slope is the one you wanna get, plus any regular international cartridge converter. I'm not sure if they sell it with any choice of nib size. My nib has no indication of its size and feels like a medium nib to me.
#FountainPens #QueerInkSquad #IronGallInk