Just a disclaimer- my scanner and monitor aren't calibrated. So, what you see on your monitor may be different to what the ink is actually like. On my monitor, it looks a bit less saturated that it appears in real life, however, I believe my scanner [CanoScan N650U] is more accurate at capturing colours than my monitor is at representing them, and so I haven't edited the scan.
Just some notes:
The ink looks more vivid when its wet, and, as it dries it appears to look a bit more washed out. Not what I would call a washed out ink, no, but just not as vivid as before.
When there is a lot of ink on the page, the ink seems to develop a reddish sheen. If you look at the 3rd swipe of "shading" part of my review, you can just see it, although its more reddish in real life.
The cross nib that I've used is broader than the standard medium, as I've smoothed it and made it slightly wider. However, the Lamy medium is the standard size.
On the topic of feathering, there's really nothing to see. If I had to rate it out of 10, I'd give it a 9.5.
The ink has excellent water resistance. I've exposed the ink to water many times, and, while you do lose a bit of colour, its still easily visible, looking maybe 95% the same as before. Even after washing, its more saturated-looking than some other [unwashed] inks that I have used. Not bulletproof, but I'd class it as a waterproof ink. Oh, and that blotch at the bottom of the drip test was caused by me not waiting for the paper to dry before circumscribing the test area.
One thing i haven't tested is fading due to sunlight. So, if that's very important to you, you may need some more research.
Mixed with Noodlers Black, it makes a nice bulletproof blue black, and, in fact, that's what I use in my pens. It retains its nice colour when exposed to water, and, even if it were exposed to bleach or harsh sunlight, it would still be legible due to its black component. Of course, as you'd be mixing it yourself, you could make any shade of blue black that you wanted, which is a bonus.
I think this is a great ink for those looking for a waterproof blue ink. Sweaty hands, spilt liquids and rain are no match for this lovely ink.
EDIT: Bleedthrough- No bleedthrough or showthrough on normal writing, however, on the 3rd swipe with the cotton bud [in the shading test], a darker patch could be seen on the other side. Not bleedthrough, but you knew something had been put down on the opposite face.
Edited by Token, 29 August 2011 - 15:04.