feed

I have a brand new Lamy nib and managed to source a feed from China (by way of Etsy). I now have both but found the feed a pressure fit (no threads) and I've never done that before. The majority of the feed that will sit within the section is 6.3mm OD, but it has one "bump out" area that...

Hi All, I am wondering if anyone has any direct experience with using Heritance Nibs on either the Jowo or Bock feeds. Is one better than the other? How is the fit? I know in theory #5 and #6 nibs should all be interchangeable, but I have not found that to be so. Sometimes there is a gap...