That modification looks really cool! I will definitely have to buy an Ahab nib to try this on, probably another feed too since I’m really happy with the way my primary Ahab is writing.
Gotta look into that Stormy Grey, I love the gold sheen on the red! I do want some more greys though, I thought they would be too light for me, but once that shading kicks in, it really looks sophisticated, and complex on paper.
And yes, for me its more inks than pens, but I definitely agree, they are so much fun to play with