Your rat-7 is a good knife. 1095 steel is good steel. But, there are better knives and better steels out there. You just need to learn how to sharpen your knife. You need to learn how to sharpen it using the sharpener you will have with you in the field. You can use the sharpmaker to set the bevel but that won't help you if you don't have it with you. You need to be able to hold a consistent and correct bevel across your edge every time, both sides of the blade. And I'd suggest being able to do it with both hands. You need to be able to do it without cutting yourself. Once you get to that stage you will be able to draw cut lengthwise through an 8 x 12 piece of typing paper after sharpening at 325 grit. That is as long as you have a clean edge, no burrs, no nicks, no flat spots on the edge.