I have a problem with Kaweco Sport: I love their design (both in terms of looks and functionality - size, weight, robustness, etc.) but I hate their nibs. I bought one whose nib was just unusable, then I got a replacement nib and it works fine - but still, its feel is just not very good.
I have looked at some posts about the possibility of finding compatible nibs from different brands ( http://www.fountainp...lternative-nib/ ) but there doesn't seem to be any option that one can just plug in as if it were a Kaweco nib, without being somewhat versed in DIY. I'm not good at DIY at all, and it's not something I want to devote time to.
Then I found out that the Kaweco Sport is a very old design, and that Kaweco used to be a different company - so I assume the nibs in vintage models are different. And I suppose they are better, because honestly, I don't think I have tried worse nibs than the current Kaweco ones (even €5 Chinese pens seem to be better in this respect). So I am hatching the plan to buy a vintage model, to see if I can obtain the design I like with a better nib.
My question is: am I right in assuming that vintage Kawecos have better nibs, without the problems of the current models? And, since I have observed that they get more expensive the oldest they are, what time period should I aim at to get a decent nib? When exactly did they change from their previous nibs to their current, unreliable ones?