I believe I sit at an even 10. But two are Kon Peki, which I love. I’m working my way through them before I get more. Maybe. I’m overall pretty good about using what I have, but I will swap the inks in my pens to see how they write with different inks.
Pelikan Edelstein Moonstone ink works quite well in my Sailor PGS. I like it very much, in fact.