I haven't jumped on the fountain pen train yet. I have a couple of disposable types (Pilot Varsity, Zebra no-name disposables) and at least the Pilots seem to bleed and feather too much on "normal" ...

Does it fit well around the feed used for the #5? Usually, with Jinhao pens, you are limited to swapping similarly sized nibs. I should have been more clear. I have a pair of Jinhaos I’m going to nib ...