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Cult Pens has just released a fifth ink colour, Herbert (aka Little Herbie), in its Iridescink range produced by Diamine. A note on the drying time test: My scanner isn't good enough to pick up the bit of colour left of the first '30' mark in the list, but I could see that my thumb must've been moist and had some ink from earlier rubbing activity clinging to my skin. Feathering: None that I could see. Bleed-through: None that I could see. Sheen: Like the other Iridescink colours, Herbert is a monster sheener with dark red, almost brown sheen. One downside is that it is quite apt to smear even when seemingly dry. I scanned the page some five hours after I'd finished writing on it, and still some words got smudged against the scanner's dry glass surface. (The photo below was taken before the page was torn from the Rhodia Dotpad for scanning. None of the small writing appeared blue-black.) Shading: There is shading but it can be hard to see without looking really closely, not because it is subtle, but because the overwhelming sheen distracts and interferes with the onlooker's perception. Water resistance: Poor. Don't count on being able to read the faint marks left after getting the page wet; the colours that get lifted are quite staining. The piece of paper left to soak face up is more stained with blue, but the staining was more confined (only) by virtue of it being slightly concave, thus preventing the colourful mess from reaching its edges. The piece of paper left to soak face down did not fare any better with regard to legibility of the marks left behind; the blue colour that got lifted sank towards the base of the tray away from the written surface, but the grey didn't, and left dark clouds all over the page. Final thoughts: I don't think I need both Herbert and Christine in the Iridescink line, but I have yet to compare them head to head to decide which is better; and resistance to smudging when 'dry' will play a significant part in my decision.