Hi everyone! In the last year or so, I've become yet another victim of the knife bug, and I've read so many CT threads that I've felt like part of the community, but I realize I haven't actually joined the forum, so hello!
First a laundry list of background info:
My main knives are a 240mm Konosuke HH gyuto, a 10 inch carbon K-Sab, a 270mm Misono Sweden sujihiki, and a 9 inch Victorinox/Forschner Fibrox bread knife. I also have a 180mm Mac Chef Series gyuto from before, along with a $10 stainless cimeter, a cheap meat cleaver, a stainless Chinese "cleaver" that turned out to be too thick to use for veggie prep, an unopened pair of Tramontina Pro santokus from Costco, and a 150mm Kai Wasabi petty that I don't love and mainly use as a box cutter.
I sharpen on an Edge Pro (CKTG's essential set + Atoma 140 and Nubatama 150 for coarse work), and I now strop on balsa wood with 1 micron diamond paste. I'll probably switch to freehanding with JKI's Gesshin stone set (400, 2000, 6000) at some point in the not-so-distant future.
Now for my petty questions. :) As far as I can tell, the main reason most people get a petty is that it's fairly (but not perfectly) suitable for tasks that fall into all three categories of paring, trimming, and boning. The most popular length seems to be 150mm, which seems to be just large enough to be usable for a lot of trimming and boning tasks without being too awkward for paring. However, I don't currently find myself doing any paring, and if I did I could just get a <$10 paring knife for the occasional task. So my question is (1) is there more to the rationale behind a petty than the above and (2) if not, what would be the optimal size for a petty/suji to be used just for boning and trimming? 180? 210?
I've come across references to Jon Broida having apparently used a 210mm petty/suji as his main line knife, but I don't know if he found 210 to be the ideal length for trimming and/or boning or if he would have preferred 180 for my purposes but needed the extra length for general gyuto-style prep.
All right, that's enough for one post! Thanks in advance.