What doesn't work: -- Handles less than four inches long: (can't fit three fingers on them.) -- Five-inch handles: They poke the base of my palm. Tried so hard to persuade myself that the handle ends of Bear Paw and Bushfinger were as comfortable as the rest of their handles. IMO the Bushfinger is one of the ultimate Fiddlebacks, perhaps THE essence-of-Fiddleback model. -- Some 4-5-inch handles whose ends jab base of my palm: for example, HB, Bushcrafter, Bear Cub. Best handles for me: -- Big Palmer: Best 3-finger grip. Can also bear down with four fingers in hammer grip. I've used this for hours at a time for processing fruit. -- Woodsman with 5 1/3-inch handle: Comfortable in all grips. Use a lot in the kitchen. -- Big Mitt, whose handle I modified to accommodate my gimpy grip: It's become my most used model and could cause me to sell some other short blades, since I only keep knives I use. Other handles that work for me: -- BC Karda: Very useful blade. Downward curve of handle prevents jabbing of palm in all grips. -- Short-blade Patch (2.6" blade and 4.2" handle, which is only 6/10ths inch thick): The tip broke off. Andy repaired it. I then bought it on the Flea. One of my two favorite models for fine work that the Big Mitt is to big for, the other model being the Bushcraft Karda. Weighs just 2.7 oz., so perfect EDC for around town. -- Carver: Ingenious handle. Curves so slight, yet locks in hand for fine work and strong grip. Can get four fingers on it in carving grips. Only model with original edge. That's because I'm not sure I will keep it, as I already have four other short-blade models. But it might replace the BCK as a short-blade/long handle EDC. Very classy design and favorite to look at. Handles that worked but that I've sold: BC, Jr., Monarch, Toboggan.