I want to learn the pros and cons and how the various high end knife locks work. Where can I learn this as well as the various blade designs and uses? I am looking for a super strong 4.5 inch fighting knife. Maybe it should have a frame lock, good grip handel such as G10 scales, curved back part of handel for a good grip with some type of front edge to avoid slipage onto the blade, tanto blade half serrated, all black are other non reflective color, with maybe a double lock feature. Anything that fits this description? I want to know what im looking at before I drom 1-700 bucks.