This should give you an idea of the crispness this ink gives, even on this highly textured paper. It's pretty amazing! One thing some people may not like is that this ink has a very matte finish and reflects light the same way as India ink, Chinese ink, or Japanese sumi ink. Thus, although it is probably as black as you can possibly get, in some lighting it looks pale. Personally I kind of like how it seems to meld with the paper.
The ink sticks to my Lamy 2000's nib. It looks like nib creep, but it's worse. You may be able to see the ink stuck at the base of the nib near the hood. The good news is that it washes off easily when rinsing out the pen, but I can never seem to get it all off with a tissue or Q-tip. I usually end up pulling more out! I dipped a couple other pens with steel nibs in this ink and it didn't stick like this at all.
Here's a smudge test - a good hard rub with a Q-tip. By 15 seconds the smudging is barely noticeable.
The box makes four claims (well, actually six, but they inexplicably combine some):
- Waterproof
- Won't clog, makes a sharp line
- Won't bleed or show through
- The best for official documents
After using this ink, I'd say they're all true. You can get some bleeding on certain very fibrous papers -- the kind that also clog your nib with paper bits, which you're unlikely to be writing on with a fountain pen in the first place. There's very little show-through even on very thin paper. As for clogging, I have been using Kiwaguro in my Lamy 2000 for 3 months straight now without flushing out my pen. No problems at all (except for my dirty looking nib). As I mentioned in the hand-written portion of this review, Kiwaguro really lubricates a nib. My Lamy 2000 was already super smooth, and the first time I filled it with Kiwaguro I couldn't control my pen. You might notice that some of my lines look a little shaky at the start of the review -- that's because I haven't used it for a few days and it takes me a minute to get a handle on the slipperiness.
One interesting and nice thing about this ink is that it doesn't stick to plastic at all. It won't get trapped at the top of a converter and it moves quickly around in the Lamy 2000 so I can actually get some use out of the minute ink window. When it flows it leaves no trail behind, and I am positive there is no danger of staining.
This ink smells basically the same as India ink. It reminds me of art classes, and the smell of the charcoal sticks, ink, and drawing paper. It's not very strong unless you put your nose near the bottle while filling.
Here's the water test. I ran the paper (HP 32#) under lukewarm water for 30 seconds. The initial splash pushed off a fair bit of black, but it didn't lighten the words at all. There is a fair bit of ghosting around the letters but they are still perfectly legible. For comparison I used Shaeffer Skrip black which looks like a shadow of its former self, with only blue-grey undertones remaining.
The bottle is a typical Sailor bottle, which is kind of cute but too shallow.
THE END!
Just what I need... a search for rare ink 
This ink is specifically designed for fountain pens. The carbon particles are supposed to be so small that they will never clog your pen. Like I said, I haven't had any problems and I haven't flushed for 3 months. I've left it sitting for 2 weeks one time and there was no problem either. It's actually one of the best, most predictable inks I've ever used.
But they could order it. Lucky for me really as my wife was with me on that trip 
) - I should be getting a bottle of this lovely stuff within the next couple of days. 
