I was a little surprised that I didn’t have more blue black inks that were similar to Ink ‘24. I think it is the grey component that really makes this a moody BB, which I am enjoying. As with the regular line of Franklin-Christoph inks, this one behaved well and was pleasant to use in the three different pens/nibs. I liked the color the most in the Lamy Vista because the grey really comes through, and it didn’t feel super dry in that pen either. You may prefer the color or writing experience that a wetter or drier pen/nib will produce, and that preference might be different depending on the ink/pen combination too.
The ink, which sells for $8.25 for a 1 ounce bottle (~30 ml) sold out at the Philly Pen show but another batch of ink has been added to their website.
(Disclaimer: All inks and pens (and swatch cards/notebooks) were purchased by me.)