I love the look of a more traditional folding knife and am slowly making my way back to carrying these classy knives instead of my more "modern" flickers but I'm having issues with some of the newer ones I'm picking up. I figured I'd start wearing in some new blades so that one day I can pass them along like the ones I got from my dad, my grandfather and my wife's grandfather. The problem I'm having is the blades are so tough to open that I literally have to use pliers. I've tried oiling them and opening and closing them repeatedly but they're still really hard to open. Is there any way to loosen them up other than carrying them and a set of pliers around for a few years?