Johnny, So I scrutinised my Yusukes further and your're absolutely correct, I see the difference from right to left blade face. Eventhough they're really thin knives, 240 1.6 spine at handle, I can see that the right side of the knife is thicker than the left side (edge facing down).
One thing you can give and still keep...is your word.
did anybody ever find a thicker/higher hrc with the flat profile (KS shape) of this knife? but in w#2 not stainless
I thought they were all in SS. Mine is. I don't recall seeing them in carbon as the description of extra hard related to SS which was otherwise usually less than 61hrc.