After a 10 month wait my 0562CF was finally shipped to me. Was thrilled to open the box only to find that I could not open the knife with one hand. The closed detent is so stiff that I need the use both hands and pull the blade past the detent. I have other ZT fippers, including an Elmax 0562, and none have this issue. So the question is, do I return it or does the detent need to "break in"? After such a long wait I feel miffed that I need to endure a warranty cycle.