NEW PEN DAY: TWSBI Diamond 580 Iris (Medium)

oh hi everyone, it's new pen day!! I haven't had a new pen day in a while... well, since the Transparent Yellow Eco, but I don't think I did a video about that one. Today I'm unboxing the TWSBI Diamond 580 Iris, comparing it to the TWSBI Vac700R Iris, and doing a bit of a writing sample with Sailor 50 States South Dakota. Share with us in the comments if you ordered, or are planning to order, one of these pens and which ink you're using!! :)