This is a mostly hand written review of Organics Studio Blue Crab ink. It was a Baltimore Pen Show special, and the leftovers were sold off by various retailers. Thus, I was able to purchase a bottle.
In the artificial light here at home the color looks amazingly close to the Thistle T2 with 1/3rd more water added. It is not as shady as that ink, nor as wet, but it can appear very close. In natural light I think the Thistle is more to the green side (but that's based on memory). The ink is reasonably water resistant once dry on inkjet paper.
I did not do a chromatic test of the ink while it was inked in a pen. So I don't have that.
The ink is a bit on the drier side from what I love, so that's kind of my only quibble.
Anderson Pens website lists OS Blue Crab in 55ml and 4oz bottles in stock as of the date of this writing. I have no affiliation with any company listed here.