I am thinking that it is time to buy a knife sharpening system. Presently all I have is a steel rod that came with my Henckels kitchen knives and a small diamond impregnated rod that I carry in my pack when hunting. I have been doing some research and have thus far discovered three different systems that seem to be commonly used. They are the Spyderco Sharpmaker 204, the Edgepro Sharpening System (either the Apex model or the Professional model) and finally the Diamond Machining Technology (DMT) stones. I have some questions. With the Edgepro system would the Apex model suffice or would I really want the Professional model? If I bought the Apex model would I want to buy other grades of stones to go with it? If I went with the DMT stones which ones should I buy? It appears that with the DMT stones and with the Sharpmaker I would need to freehand the angle. I am not terribly confident that I can hold a consistent angle and I do not know exactly what angle is best. Presumably I should follow the angle that came on the knife? Any advise? Thanks, Rufous.