Ink Review: Graf von Faber-Castell's "Stone Grey" Ink

Here I review an ink by Graf von Faber-Castell, by the title of "Stone Grey" (a medium-to-dark-Grey ink, with shading a'plenty, and (possibly?) wet flow). Here-in may be found my own thoughts and opinions on the matter, as well as some test results I have for (among other factors) water-resistance on Clairefontaine, Fabriano, Rhodia, Tomoe River, Copier Paper, Mead Notebook Paper, and Moleskine papers; and using two Lamy Safari, one with an Extra-Fine nib, and one with a 1.1mm Stub nib as pens for these tests/experiments.