I used a B6 pen nib for my lettering back in 1986 maybe 1985. It does the job pretty good.
Pen and ink are just cool, when you get used to it. At first I got weirded out over the 'scratch' of the pen on paper, but it soon went away after learning the amount of pressure needed to do the job, combined with the proper paper/board. I like coldpress, it produces much better results when inking my cartoons.
My PesterBrook nib for the art, with a B6 for lettering work comic strips well.