I' ve been reading all of these posts about strings lately & it made me take a closer look at mine. My string is showing a little wear and I could probably get another season or two with no problem, but since it is 3 years old I think I' d like to replace it for peace of mind if nothing else. So here is my question, how hard would it be for me to replace the string myself? I would prefer to do it myself just for the learning experience but if it' s too much trouble I guess I would just have it done.