As mentioned before, when it came to pen, I was very fussy. I loved to write but since my hospital went paperless, I had to change tact. Certainly it made me miss my pen.
I always carried a couple of pen with me in coat. As a houseman, I used to carry three. A ballpen, always black and of a broad nib, and a fountain pen - again broadest nib available carrying a blue ink. My third pen used to be another fountain carrying a red ink. I used to write all my blood results in red at the left side of the medical notes. That made looking for results that much easier.
Now, my ball pen was a Mont Blanc. I used to carry a Parker fountain before I discovered Pelikan. I dabbled with other fountain brands including another Mont Blanc, but that unit stayed on my table. The nib wasn't smooth enough. But the Pelikan was great - going well with my royal blue Pelikan 4001 ink.
3 years back I changed to a Lamy before going back to Pelikan.
A few months back, I tried a Faber-Castell and it felt great. The main thing about them was the heft that it had, balanced at the nib. Not all fountain have that kind of balance. So, I tried a few of their models before finally settling for one. But unfortunately they didn't have a broad nib in stock. I had to order one.
So, I received the call that order was in and the timing was perfect as it had quite a bit of discount for the Xmas sale period. Been using it all evening and I was certainly liking it.
My Pelikan pen was of special broad-nibbed, heavy flow model which wasn't designed for daily use. The fact that it lasted 3 years was a bonus. Time to shift. So, great news all around ...