Ink Review Noodler's Heart of Darkness Black Ink

Here I review an ink by Noodler's, this time their Heart of Darkness Black (Eternal) Ink offering. 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, Rhodia, Copier Paper, Mead Notebook Paper, Tomoe River Paper, and Moleskine papers, and using an ITALIX Parson's Essential in Medium as a pen for these tests/experiments.