ZT, You Let Me Down09/28/2019 ByFGE1711 Received Friday, Returning on Monday Super difficult to flip open (painfully difficult, like deep dents in your finger). Frame lock super difficult to disengage (also painfully difficult, dents in your thumb). And still after opening and closing at least 50 times. If this is your first ZT, like it was mine, it may turn you off to ZT all together. Knifes in this price range should be a joy to open and close, not a chore. I will not be buying another ZT on-line. Only after handling one that is at least as good as every Kershaw I ever used will I purchase another.