I love my Monteverde Artista Crystal -- beautiful clear feed and converter, perfect size and weight for me, and definitely the sturdiest of my demonstrator pens. The only problem is that it only comes in M. Now that some of the colors are discontinued, I wanted to pick up another one but don't want to be stuck with another M. Where would I be able to buy a replacement nib, preferably a 1.1 stub? I think it's a size 5 nib, and I've only found Edison nibs and feeds in that size, which are a bit expensive, especially since I'm not sure if they would fit. Has anyone had any luck finding a replacement nib for these pens? Thanks.