Good Old Reliable Black
This is my #2 favorite Noodler's Black. I have it in a #2 fine nib, dedicated exclusively to line drawing in pen & watercolor sketches in travel notebooks because it doesn't bleed when I add light watercolor washes to it. For serious writing, I use Noodler's Heart of Darkness with a #6 flex nib, mostly because I love the homage to Charlie Hebro, & the free Charlie pen is the #2 I use with this plain black. I seriously can't tell much difference between the two, so for what it's worth... Generously sized Anderson samples, too, with super-quick shipping.