In regard to nib choices that I mentioned in my post on Nemosine nibs, I spoke with the fine folks at XFountainPens.com, who admitted that they had been mistaken in regard to the K35 nibs' compatibility with the Nemosine pen. The nib is the same size; however, the radial curvature is slightly different in the K35 nibs from the Nemosine nibs.
Coming soon will be a guest post, which I think that all of you will enjoy. I certainly learned from it!
Also coming soon: new fountain pen reviews!