In my experience with well over 100 Benchmade folding knives and over 20 Spyderco folding knives, Benchmade quality control is vastly better than Spyderco. The rate of defectives that I have observed is 3% for Benchmade. For Spyderco, it's harder to decide where the cutoff between defective and non defective is. Ignoring Spyderco Byrds, about 20% of the Spydercos that I have bought were unusable out of the box. Some of those were easily fixable, some were not. Roughly another 20% were unsatisfactory and needed work, either disassembly or breaking-in over a period of months.