I always have a few (8) pens inked up and ready to go. There is no official rotation, just pens I happen to have filled with ink for one reason or another. These are those pen and ink pairings.
Kyanite Blue TWSBI Vac 700R (Extra fine) filled with Noodler's Ottoman Azure for about 12 months. Refilled once 6 months ago .
Green TWSBI Eco (Extra Fine) filled with Wearingeul Call of the Cthulhu for 11 months.
Sky Blue TWSBI Eco (Extra Fine) filled with Noodler's Texas Sidewinder for about 9 months.
Jade TWSBI Diamond 580ALR (Extra Fine) filled with Lamy Turmaline for 7 months.
Slate Blue TWSBI Eco (Extra Fine) filled with Birmingham Andrew Carnegie Steel Blue for 3 months.
Aubergine Lamy Al-Star (Extra Fine) filled with Noodler's Purple Heart for 3 months.
Denim Lamy Al-Star (IF) filled with Monteverde Jolly Roger for 3 months. Refilled once one day ago .
Black Visconti Homo Sapiens (Medium) filled with Noodler's Navajo Turquoise for 2 weeks.
8 inked up pens