Quoted this post cause it would take up less space lol.
Far as length is concerned there is a fair if not majority of those who believe 270mm to be optimum length. Though I have no issue with this thinking or the length for my own use (ex. it has been comfortable when I used longer length knives in the past etc) I also decided on 240mm for both of my current gyuto/chefs.
The reason for this was twofold as I do not have the pressures of working in the industry (production and time etc) so the longer length would not add the same value and my most previous chefs were 8" (210mm) so even a 240mm would be an improvement, but also very important in my decisions was the added costs of going up from 240 to 270. On both my Fujiwara and Konosuke 240mm gyutos there was a significant enough difference in cost to make the 240mm attractive
I know your comparing the 210 & 240mm and I am not familiar with the current prices but I am consideringthem to still create a "sweet spot " in price.
Though we all can enjoy a bargain or value etc and going shorter can offer a savings I have to advise going with the 240mm unless you have some sort of limitation or just a preference for the shorter 210mm.
I still get to use a couple shorter gyutos on occasion when at friends and relatives (most often a 180mm Tojiro DP that I also end up sharpening a few times a year) and they are fine, but at the same time just not as effective and sometimes just a little cumbersome when you would be better with the longer ones.
I know BDL has very good input on this as he was very helpful in the past etc
Also the limitations I refer to above could be physical or even as simple as a very small work area.
Its a bit difficult to explain but once you get comfortable with a longer blade the shorter ones make less sense in use because they end up making you do more work and the longer ones are no extra work even on smaller products/jobs. I had even held onto a santoku at one point as at the time I found it easy for smaller stuff and the four small cutting boards I had, but since I have found I hardly reach for the small boards or that knife either. Its still a great cutter and I keep it maintained sharp etc, but it just doesn't get any real use anymore.
Hope that helps, and sorry I can't really help in your comparison request as the only one on your list I have used for any speakable amount of time is the FKM, but I do still use it often, and remain amazed by its value (price compared to quality and performance).
"love my country" but "fear my government" Something is just wrong with this
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