i got my first TWSBI's. I ordered an ECO F off Amazon and while waiting for that to come in I ordered a second one in the 1.1 Stub from Goulet. That one actually showed up a day before the one TWSBI shipped. For me the 1.1 seems like it goes from fine to medium. I can see using it as a daily pen, not just the special use type I thought it might end up being. The fine nib works well just as well as some of my other pens with fine nibs. Both are nice smooth writing pens. My favorite ink in general is Kon-Peki so I got samples of two other inks.
I used samples of Iroshizuku Murasaki-shikibu and Shin-Ryoku inks in the two new pens. One issue I had filling from the samples was lots of bubbles in the ink fill. That kept me from getting good fills. I expect filling from a real bottle would be different but it would be good to know if that is other people experience.
I look forward to the new 700s Vac coming out.
Here is a pic of the new pens.