I'm thinking of buying a TWSBI Classic. Unfortunately, these pens have a little metal ferrule at the end of the section. That's a problem for me, as I know from experience restoring vintage pens that metal on sections corrodes over time. I'd like to remove it, and replace it with my own plastic one at a later date (a few years) when I get a lathe.
I know it can be removed by unscrewing the nib unit, but will it go back together well without it? What does it look like when it's off?
Could an owner of one post a picture or two please?