John expertly replaced a Fine nib on the used Montblanc 149 I bought from him with a used O3B Oblique Triple Broad. He cleaned the pen and got it back to me in a week.

An authorized Pelikan reseller, he also tuned the nibs on three Pelikan pens - M205 yellow highlighter, M800 Tortoiseshell, M800 Blue,with stock Italic Broad nib, and customized a M800 clear demonstrator's Broad nib to a Cursive Italic.

Bravo zulu!