@TRfromMT I'm glad my review was useful to you. Totally agree on the lookup feeling more secure on the 21 than on the 31. Although, I've had no further issue with the 31 other than the "wiggle" when pressing on the back of the blade with it open. Very much a non-concern for me at this point since the 31 has been performing admirably. @jascolli I took my initial pictures to gauge the lock wear, among other things, and have not seen much progress on wear from the ceramic ball. I'll be following up with an update and more pictures after some months of use, but I think I'm safe in saying there's not much worry about the lock interface wearing out anytime soon. Glad you enjoyed my review.