Personally I'm partial to the Zebra Sarasa Clip [0].
If I can't use a fountain pen, I fallback to a Uniball Elite or Uniball Signo 0.7/0.38.
On the ballpoint department, you can't get my CdA 149 from my dead, cold hands.
If you really want to use a smooth Bic, try Cristal Soft. If you want something flies, try Uniball JetStream.
Torture for a pen enthusiast! Your favorite being what? Is it the Sarasa Clip you mention later?
So I bought myself a set and now write in pink at work... .
They are found on every new ball pens and refills in India. I don't know the exact purpose of their existence, but I guess it has to do with leakage of ink.
I never thought I would see this question here! I now write with FPs exclusively, but removing those beads from newly bought pens were special experience to us as little kids! We fondly associated them with the joy of new pens. We used to call them "pearls".
My body is probably full of microplastics from chewing away at them.
The one flaw: no upside-down writing.
Many "permanent" inks on permanent rollerballs and gels (e.g. Uni SuperInk) is also water based, yet they don't and won't leave your paper, because they're made of UV resistant pigments.
They're specifically designed to be that.
Bulletproof Noodler's inks are as follows: https://noodlersink.com/product-tag/bullet-proof/
They even have 16 Oz. bottles if you want "buy one, leave for grandchildren" amount of ink in one go.
If you want a more mainstream archival ink, go GvFC, Pelikan 4001 Blue Black (not available in US), MB midnight blue or Pelikan Edelstein Tanzanite.
Noodler’s Baystate Blue is at least as waterproof as the paper it’s on.
https://www.carandache.com/us/en/ballpoint-pen-ballpoint-pen...