Well, my 4-5 yr old Kershaws, including a Chive, Scallion, Leek, and a pair of Blurs, not to mention last autumn's Dam Leek, have joined my Bucks in having bitten me in a most insidious way... I want more. I drew a bit of blood twenty odd years ago on the way back to the motel in Gatlinburg, after buying a Buck 301 Stockman (Sharp!). Other than that, my only DNA samples have been left on my dullest SAKs.
I am not a fan of liner locks, preferring lockbacks. I have never had a loose liner lock. My oft-toted Blurs, showing their age in wear (What skate tape?), are still tight as a drum. If you get a 'bad' one, try to swap it... or send it back - they are decent folks. My only fault thus far with a bunch of new folder knives, including Bear MGC, Benchmade, Buck, Gerber, Kershaw, Puma, Victorinox, and Wenger, has been too-tight Torxx screws on my Dam Leek, causing me to twist my Crapsman driver. Kershaw sent me a little driver set (Worked great!), screws, and a new clip - what yeoman service - give'em another chance, they'll get it right.
Stainz