I ordered a pair of forum native 5s, one had pivot looseness, and a issue with a screw, so it needs to go back, but even with my perfect copy, I'm not in love, the good copy feels pretty smooth and has a nice backlock click. But it feels a compromise, The linerless FRN flexes giving it a less than premium feel., I question the additional strength the backlock provides without liners. I'm just not completely sold, and honestly scared to buy a lightweight s110v manix because of it. I'm not sure if its the linerless backlock deployment I dislike or the linerless FRN itself.