OK, I know many of you already know this, but I recently bought a NOS 2134M [edit: should be 2314] nib and put it into one of my Esterbrooks. Wow! What a fantastic nib! I was surprised at how nice it was. I am very impressed.
BTW, how long can you write with one of these before the performance starts to degrade from wear? I would guess that you could write with it every day for many years before that happens?
Thanks.
Ron
PS If we were supposed to keep this nib's performance secret, I apologize for discussing it on an open forum.