I have all three. I like the 340 (the smallest one) the best. Its wider and shorter blade is a little stiffer. All the ones I got came with a so so edge. After I sharpen them on a sharpmaker and then stropped them they are scary sharp. They seem to hold an well (elmax). The 340 has the game warden shape blade with a better handle. I think they are new and unknown what a great value they are. With these you get a great handle, the thin stock high performance steel in an uncoated stainless blade that weighs nothing. I would love to see a larger slightly thicker 10" kitchen knife from the yard made in elmax.