I am getting HHT-2 or -3 edges off my coticules that then become HHT-3 or-4 and, very inconsistently, dare I say rarely, HHT-5 after CrOX on balsa, linen, and leather (and usually only on part of the bladel). I have better success with my full hollow grinds than I do my 3/4 grinds (TI Le Grelots mainly).
I recently bought a Filarmonica from one of our own honemeisters en residence Stefan (mainaman, hope he doesn't mind the endorsement) and was just blown away. It was a solid HHT-5 and supremely comfortable. Having never achieved HHT-5 along the entire length of any of my razors, I came to understand the difference in comfort between HHT-3 or -4 and HHT-5. It's the difference between "pull-cut" and "-cut." No tugging at all.
Of course I have been bugging the heck out of him over email inquiring about his honing methods and of course there is a JNAT involved. Now I acknowledge that there are a lot of other variables involved here: the skill of the honemeister himself and the blade (which I have yet to need to hone myself).
But I've got the bug. I want a JNAT. I'm going to have to sell at least another coti bout to afford one. I just need reassurance that once I've learned the stone it will offer me an edge that I won't be able to achieve on a coticule. Is this the case or am I just kidding myself?