I never thought it would come to this...a slip-joint as my edc, I was always a lock-blade guy (yes, OK, always paired with an SAK). However, I just received a Schatt&Morgan "Wildcat Driller" in ATS-34 from Cumberland Knife Works (wonderful people to deal with), and cannot believe the fit, finish, and...strength of the thing. That dual backspring really does the job. No chance to test it yet, just got the edge almost where I want it. I'll have more commentary in future posts.