I have owned 3 Manix and Mini Manix knives, and they have all had the usual blade-play. It bothers me a little, but the lock is very secure, and the ergos are absolutely fantastic. I am a big fan of Benchmade designs, but Spyderco really captured what an EDC is with both the Manix and Military. The Military has been in my pocket for the past month, the Manix was there for a year before I started buying all these other knives. I think they make a great duo (for choosing between, not carrying together): one is light and nimble, the other is hefty and tough. The Military absolutely disappears in my pocket, I don't know if I am used or big knives or something, but I can't ever feel it there. If I had to choose one it'd be the Manix because it is such a cool and unique knife.