Allow me to preface this by saying this has nothing whatsoever to do with WMK! This is a fantastic knife, at a superb price! Unfortunately, I got a lemon, which has never happened with Kansept for me before! On the internal groove for the lugs the titanium was not completely milled out, so the action was worse than a $20 mini-mart knife :( Yes, I could have returned it to WMK, but I hate the hassle of returns. So, I used a steel pick to wear down the titanium and then opened and closed it 1000 (I kid you not) times. I would have used a Dremel, but I do not have one yet. It worked! Smooth as butter now :) Any company can make mistakes, in my experience it's very rare with Kansept, but this one must have slipped past CQ :)