I just bought a new Vapor at Wal-Mart today. Just a little question for everyone. I can barely wiggle the thumbstud, and I can also rotate it and watch the screw on the opposite side turn (only a right stud..lefty inoperable) Should I exchange it, or are they all this way? Other than that, the knife is great for the money. When I open the knife, no problems, its all good. Just don't know if its supposed to wiggle very slightly and rotate like that.