I would only add that my Toyama 180 nakiri has thickness of the blade ca 1mm @ 10 mm behind the edge. That is on the thin side IMO. One should also not forget that edge of the nakiri is rather heavily used because it is used primarily for chopping, so very thinly ground knives will need a mini/micro bevel to give the edge certain toughness. I actually managed to sharpen my Toyama too thin at the edge.