i recently traded a Yoshikane V2 kitaeji for a Konosuke suji and petty, and those knives make me want to get a laser gyuto again. i used to own a Konosuke white 2 gyuto and the main thing wrong with it, other than a bit more belly than i like, was that it seemed much softer than my Shigefusa or my then Akifusa gyutos, which are my benchmarks. the Masamoto KS i owned seemed to hold an edge better than the Kono, and i believe those are nominally the same hardness on the same steel. my current carbon gyutos (two Takedas, a Shig and a Kochi) are much thinner at the edge than the Konosuke gyuto was, but they never roll over the way the Kono gyuto did (the Kono suji, which i've been using as a general purpose knife, hasn't had the issue, so maybe i just got a bad Kono gyuto, or they have changed things). assuming that my Konosuke gyuto experience was average, are there any companies making lasers who are hardening past 62? on Gator's site the Tadatsuna is listed at higher than that, but it's the only time i've seen Tadatsuna HRC values listed, so i'm not sure if it's correct or not (no offense, Gator, i just want confirmation). i don't abuse my knives, and i cut in a way that minimizes board contact as much as possible, so maybe i did just have a bum knife (i sold the Kono to a friend, and he hasn't had any problems that he has mentioned, but he sharpens every day). any ideas?