MtnHawk1, for me it's less about the length of the blade, and more about the thickness, and the height of the primary grind. Five inch blades, 1 inch wide and a quarter inch thick, with a saber grind, are going to be plenty tough, and I have some of those! I have knives that I can hammer into a tree and use as a step, if need be. But, recently my focus has been thinner, slicier blades. Thus, cutting (and sharpening) technique becomes more important than brute strength. I keep a tomahawk around for the really tough stuff. IF I can remember to grab it going out the door as the world is coming to an end!