Not sure what you mean by "Universal". Maybe an auto-correct from Univinlions? If that's the case, I do have both KureNai (half-DE) and Univinlions Kai clone (AC blade, non-folding).I'm interested in that Kay Wood clone, but only if they come out with a folding version and in more Kurenai reviews/comments.
Does anyone own a kurenai hald-de and a Universal? I'm asking because they both seem to have less blade exposure.
I'll work on getting you some close-ups and hard numbers, but I can say that the Univinlions has substantial blade exposure with the the Feather Pro Supers. See my SOTD pic below.
The Kure-Nai has considerably less exposure than the Univinlio/Pro-Super combo, more along the line of the Parker SR1 half-DE shavette. Pic below shows the KureNai compared to a genuine Kai Captain w/ a Kai mild blade. I'd say the KureNai has just a tiny bit less exposure.