this is my new favorite marker/ink. works great in a blackbook without using very much ink, but can get juiced up for outdoor stuff, too. doesn't streak, stains hard, shows up opaque. it's thicker than speedflow but I don't find it to be slow or draggy by comparison.
So i really like this ink. i put it in a 2oz Mop and its very sexy and drippy. i also did a buff test and trust me it was not easy to get off and stained the hell out of the surface. I put some in a pilot Jumbo and i really really like it writes so smooth get some if you can!