My first review here. I received this ink as a sample with my Inkredible Box from Truphae. I was excited by its potential, and put it into the Tibaldi pen I had gotten. I am a bit of a newbie, coming back into fountain pens after many years, and when the ink was of an inconsistent flow while writing, I immediately started to blame the pen/nib. Sometimes a nice flow, sometimes thin. Putting more pressure on the nib when I wrote only helped a little and become somewhat uncomfortable. I then tried the ink in the Monteverde pen I got the next month. Same issue. When I put a different ink into the Monteverde, it flowed beautifully. I can only deduce it's the ink that is the issue.