Mine originally came with the longer clip. I don't know the serno, because for the first time in forever, I don't have it on me. Figured my other knives were getting lonely, so I decided to change up a day. ANYWAY, the longer clip put enough pressure on the lock bar that the blade dragged on opening, consistently. If I moved it to the other end (tip down), the blade FLEW out consistently, no problem with dragging. But then the clip extended forward of the handle scales, literally into the cutting area of the blade. Short story long, I HATED the long clip. Then I got the 0770. It had the short clip like you have above. I switched them out to see hot that worked. It worked PERFECTLY. Now, tip-up carry, the blade still consistently flies out when deployed, no dragging. It still clips fine in my pocket, even though the clip rides right at the lock-bar cut-out. And I've tried it tip-down carry, and the bend of the clip sits properly right at the front of the scales, instead of out into the blade area. IMO, the 0566 should have always been produced with the shorter clip. It just works better. And the longer clip works fine on the 0770. Hopefully you don't find yourself having the same problems as I did with the longer clip. At least you have both long and short, if you decide you don't like the long one.