Well I kind of forgot that I had this particular knife. It is the xlg Voyager serrated edge. I had given it to my son who is a jr. in college as he pracitces martial arts. Anyways found it in his room in the basement today and looking it over I decided a tune up was definetly needed. I have another but plain edge that is pretty smooth. This one was/is pretty beat. Speckled with rust and the opening on it is atrocoius. I mean really hard to move it open. Anyways cleaned up the rust with a scotch brite and some RemOil. I have even got it to where it grabs once again when cutting. Talk about a pain in the ass thing to do. But I did it well enough I guess. I just can't figure out how to make it open smoother. I have blown it out with compressed air, oiled and then cleaned the pivot area with a brush, WD 40, soap and water, dried it off and then reoiled it. It doesn't come apart so I kind of stuck. The thing is a real bear to move both open and closed to the point that when opening the force used sometimes moves your thumb off the stud. Any help is appreciated. Has anyone ever tried to take one apart? The lock up on this one is better than my other in the sense that when my plain edge is open there is just the tiniest movement to set the blade in the downward position against the locking bar. This one is litteraly like a bank vault. Keep'em sharp and thanks for the info.