Kojiro Watanabe is a pretty well know TF whisperer and manages to coax out pretty great levels of performance from these blades.
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On a little more serious note, if you're looking for perfectly even blade roads for thinning, then TF's probably aren't for you.
They forge and grind their knives in a way that makes this more difficult, and in many cases you would have to alter the grind to even it out. On the other hand, you will more than likely find some attributes that will appeal to you enough to offset the way these knives are made and finished. These attributes are also the result of how the knives were made and finished.
If people only bought TF knives for the steel, and everything else was truly a crapshoot, they'd be out of business years ago at those prices. I'm also always left curious when people describe a "good one" and what they mean by that. The most entertaining, but also the most perplexing, use I've seen was when someone mentioned his TF gyuto as a "sh!t performer, and I got one of the actual good ones". I just can't make sense of it.
The term lottery is thrown around a lot in these parts of the web. As it stands I'm a six-time in a row winner, which is by my standards of course, and my list of priorities may differ greatly from other members. Warped edges I've only ever seen with other makers, and low spots are IME on par with lots of other makers with somewhat comparable grinds and blade geometries, but here the blade finishes can actually either obscure or highlight them.