Just got my ink samples from The Goulet Pen Company. I've been waiting for them--there was one in particular I wanted to try. For the most part, the Parker Quink inks are good about not feathering in notebook paper, but I ordered a bottle of Parker Quink blue-black from Amazon, and got two very small bottles of blue, both of which smelled like paint, not ink. Shipped from India. Cannot return. I'll be emptying the bottles and refilling with other inks eventually.
However. That rather soured me on Parker bottled inks, and a little on the filled cartridges.
Once my current bottles are gone, that's going to be the last Parker ink I order through Amazon.* But I still need a good, non-feathering ink that doesn't bleed through on cheap paper (which is what I mostly use).
I ordered a sample of Noodler's X-Feather black through Goulet Pens. As I said, it (and Noodler's Q-E'ternity, and scented inks sandalwood, frankincense, and myrrh from De Atramentis) arrived today. I've loaded one of my wetter-writing medium nib pens (a Hero 901) with the X-Feather, and tested it out.
Little feathering on Walmart brand notecards, but none on legal pads, comp books, loose notebook paper, printer paper, or recycled paper legal pads. It doesn't seem to bleed through on any of it, and only sort of shows through on the recycled paper.
It's also a much darker black than my Parker Quink black. I like that. I like it a lot. I just need to see if it does what Bulletproof Black does, and leaves solid residue clogging up the works before I use it in anything other than a cheap Jinhao knockoff of a Lamy Safari, or my just-as-inexpensive Hero 901.**
Needless to say, I've got a new favorite black ink. And one that's just over $12.50 for a 3 oz bottle (as opposed to $10 for 2 oz, like the Quink).
*I may order any more Quink from The Goulet Pen Company, when I've run out of the plain blue. It's my other half's preferred ink for color and behavior.
**I bought my Hero 901 three or four years ago, for just under $3.