So I have a few Montblanc Writers Editions that I bought on the secondary market. Unfortunately, they have some flow issues. I love the feel of a MB nib, but am a bit worried that tinkering with flow issues may change the writing experience. I suppose that is the risk I am going to have to take. I have heard good things form Greg Minuskin. Richard Binder, to my knowledge is not taking outside work, and regardless has a long wait. So, who do you all send your pens to for nib work?