I've read the many posts about how great customer service is at Kershaw. Never thought I'd have reason to test it until the AO spring in my 3 yr old Leek went Ka-put. It was my EDC. Used but not abused. I was going to order the replacement spring and install it my self but couldn't "break" the seal on the pivot pin even trying the tips posted on this forum. I sent it in to Kershaw detailing the problem. Today (two weeks later) I received a brand new in the box Leek as a replacement. I am blown away!!! All I asked was just a repair and they replaced the knife!! I'm sold. The SOG twitch went in the drawer and the new Leek went back in my pocket. All is well.