I would love some after pictures and how you went about doing it. I have a takeda gyuto with the same issues. I can get it hair popping sharp, but if I try to cut a small potato it will wedge something awfull. Now this i my first proper J-knife along with a Masakage yuki gyuto and my first foray into stone sharpening, so the whole concept of having to thin the shoulders is a little overwhelming and any help would be great.