I cleaned up some old Koh-I-Noor Rapidographs, and these are by far the best results I've gotten so far. They're made for technical drawing, so that makes sense I placed them so the bottom of the colored rings of the handle were lined up with the top of the tool holder. All the Rapidograph tests were done at 10mm/s & 10g, using Yasutomo Sumi Ink. Here's the first 0.5mm tests I did:
As a comparison, here's a test of the same file I did with the ultra-fine point Sharpie, after abusing it during lots of tests, and letting it dry out once (oops) - this may have been at a faster speed, though:
Just to be fair, here's the same test with a new Sharpie, at 10mm/s & 10g - lots of bleeding compared to the Rapidograph:
And finally, here's the 0.3mm tip with a 0.6mm hatching, which is super clean - this was the first test I used it on, so the beginning of the B was a little dry still:
And thanks for all the advice regarding cutting! I'm going to try to mess around with cutting this paper using the carrier sheet this weekend.