A while ago, a long long while, I asked the inestimable Sam_Capote, who I had previously assumed owned every ink under the sun if he had tried out Bung Box inks made by Sailor. He had never heard of the inks and proceeded to go through hell and high water working with a forwarding service to get them to him. He very nicely put up some samples, which after almost a year, I consulted before I finally got some of the inks for myself.
Instead of going with a forwarding service, I asked cool-japan on ebay about it, the amazing guy who has been selling me all the Kobe inks I have reviewed recently.
It has a fair amount of sheen on highly absorbent paper, like this art/sketch paper ...
... but still has some sheen on regular CF paper too.
It's got some shading, but not a lot.
And note that the dry time is HALF of Ebony Purple.
I personally am not on a quest to find the darkest purple ever, so although I very much like this ink as a change of pace, it's not my grail ink. Still, it's a great colour and shade, with really interesting properties and good behaviour.
The only downside is the price. When I asked cool-japan why he didn't normally stock the inks, he told me it was because he couldn't get as good a price for the Bung Box inks as he was getting for the Kobe ones, and he didn't think anyone would want to pay $40 USD for a 50 mL bottle of ink. Considering the shipping was free and there were no customs charges, I didn't feel it was painfully expensive.
More photos in my review album here.