Just ran down to the post office to collect my new toy.
A Mizuno Tanrenjo stainless #6 cleaver from Koki at JCK. Literally just got it about 30mins ago so I've only taken a few pics and inspected it.
Super thin with a modest full taper on the spine, paper thin behind the edge. Just shaves arm hair ootb, not that that's important, weights 473g with balance about 2 1/2'' front of handle. Handle is rosewood (I think) and actually really surprised me. I didn't contact Koki prior to ordering about the handles, as I figured Mizuno handles were pretty **** anyway and I'm planning to rehandle it. On the contrary though, the handle is pretty much perfect (at the moment); no gaps, nicely rounded, rivets are flush and have no gaps around them.
So far I'm excited to start using it and seeing how it sharpens up. I'll post a review further down the line. In the mean time, here's some pics