15 iron-gall inks written with Daiso Air-Seal pens after nibs were reground

I couldn't stand how woolly and blobby some of the lines written with the tester pens look, especially in the actual testing pad and notebook (not Rhodia Dotpad) I'm using for the year-long experiment, and so I reground the nibs on all of the pens.

Note: Colour correction — which usually makes the image darker overall — in GIMP was not applied after the scan, but I have included the reference colour patches from the same scan. I wanted to show you how dark Diamine Registrar's Ink looks to the scanner, without any doubt as to whether I artificially darkened it or increased the contrast.