Sorry for Hijacking the post a bit.
I don´t have a Suien nor CCK so I can´t comment on this but I am considering buying my first carbon cleaver (thinking of Sugimoto nº6) and I am also worried about the edge profile of this as I recently read a post on another forum where a member (CCKdisciple) complainted about the curved edge of his Sugimoto. I have seen old pics of this cleaver and it seems pretty flat.
I do like flat cleavers and I wouldn´t want to spend that money in one that it is not. Has anyone bought a Sugi recently and can comment? I would appreciate it.