I purchased a spyderco military n.i.b. uncoated blade with g-10 handles that is very stiff to open. I tried adjusting the pivot screw but now improvement. I disasembled the knife and polished the brass washers made sure everything was clean and reasembled and lubed with remington teflube. Still no improvement. The action feels smooth when opening but I have to give a flick of the wrist when opening. Could the liner lock be causing to much drag on the blade? Is this adjustable? Does anyone else have this problem.