Hi Ray,
Actually my set up and user routine has some similarities with chemicalkinetics. For example, I also have a Watanabe knife, a 225mm gyuto. And for relatively simple tasks I just pick what is on hand - usually first pick being my Herder petty as it’s always lying on top of my kitchen counter, and then also my Sugimoto.
Typical example: yesterday I needed to cut a small onion, a celery stalk, and a carrot for a soffrito to be used in a soup. Nothing else needed cutting - simple task. Either of the two knives would have worked well, and I picked the Sugimoto.
Sometimes for these simple tasks I feel the urge to bring out the Watanabe or my Munetoshi petty.
These four are my general multi-purpose knives. And to some extent, like chem, I just pick whatever is sharp or easy to grab.
The Sugimoto is a great all-rounder: sturdy enough for tougher jobs like cutting pumpkins or cheeses, but the small cleaver shape makes it nimble enough to do all cooking tasks fast and efficiently.
The Watanabe is a longer knife, and the steel is both sharper and thinner than the Sugi. But it’s not a fragile knife (no laser). This is a great knife for cutting lots of produce fast and efficiently, but the bigger size means you have to be more aware of what you’re doing, so for example the kitchen counter should be tidy and clean. As it’s a beautiful knife (burnt chestnut handle) I don’t want to use it that often to keep it somewhat good looking.
The Munetoshi 165mm petty is a great knife for precision work and small quantities, for example if I have to really dice an onion thinly. My new Ashi Ginga petty can also function like this.
My German Robert Herder carbon petty is just the best knife I’ve ever had: it’s always sharp, patina from the carbon is easily removed so I don’t have to baby it, the steel is extremely thin but still sturdy. It’s my benchmark for cutting so to speak. I use it for opening up DHL packages to slicing onions.
Finally I have some specialty knives, like the Masamoto KS deba and KS sujihiki, the CCK bbq chopper, a Misono for breaking down poultry and a Munetoshi butcher. And then of course the Thai Kiwis.