I always have a few (9) 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.
Night Blue Mica Pilot Namiki Stella 90S (Fine) filled with Noodler's Ottoman Azure for one year. Refilled 5 times 4 months ago .
Cerulean Blue TWSBI ECO (Extra Fine) filled with Noodler's Navajo Turquoise for one year.
White Sailor Professional Gear Slim (Fine) filled with Noodler's Ottoman Rose for one year. Refilled 3 times 3 months ago .
Makrolon Lamy 2000 (0.6mm CI) filled with Rohrer & Klingner Sepia for 9 months. Refilled once 8 months ago .
White Blue Opus 88 Koloro (Extra Fine) filled with Birmingham Point Park Fountain Turquoise for 4 months.
Black TWSBI Diamond 580ALR (Extra Fine) filled with Akkerman #29 Hofvijver Gris for about 3 months.
Purple TWSBI Diamond Mini AL (Extra Fine) filled with Diamine Grape for 2 weeks.
9 inked up pens