Hmmmm hmmm… I’m not 100% sure but I do use Microns (sz: 005, 05, 08, 1) and Pentel Pocket Brush Pens that I’ve lightly customized the tips. Also, I love my nib (dip) pens so much, but I’m picky about using them lately.
Oh gosh, and I recently bought a huge Faber Castell pen that I was SO excited over. Then I actually tried to use it and it was just a dark gray instead of black… I can’t fully trust their pens, man. I’VE SEEN THINGS, MAN. I’VE RUINED THINGS, MAAAAAN! GAME OVER.