This was received promptly from WMK. Thanks to all of you there. Out of the box the knife action was gritty the first couple times. A Q-tip was used to clean the detent ball, then a tiny bit of grease applied. That smoothed out the opening and closing. One drop of KPL per side of bearing finished the job and now is butter smooth all the way around. I gave it one of my edges today, and took the edge to 17.5 degrees. A real slicing beast. Recommend a small dab of thread locker on the pivot screw because it will back out after you flip this addictive little knife over and over just to hear it. Awesome little knife, love it.