OP said, "Early impression from a 31 skeptic. 21 is my GOAT and I didn't like the canted clip and felt the ceramic lock interface was a needless addition that gives the knife more complexity with no benefit." My thoughts exactly. And it is interesting that the (very) few reviews I've seen so far on the 31 discuss the new features more like they are explaining them, and how they don't materially detract from the knife, not like they think these features add anything significant to the essential Chris Reeve Folder (The Classic/21, for those that aren't clear ). It must be exceptionally difficult to upgrade a product that was already the result of many evolutionary tweaks. The 21 stands out as an almost perfect folding pocket knife in every way. Think of so many other products that were game changers, and in latter years were tweaked, and features added, that did not improve on the original. As a carpenter/cabinetmaker, I find (at 60) there were so many original products that were changed from ideal to fairly useless by unnecessary changes and "value" engineering. I have to give credit to CRK for the way they have managed to update the product line while still staying true to their core vision. I recently added an Umnumzaan to the collection, and while I really really like the knife, and understand some of the changes, it still does not surpass the Sebenza 21 in overall design and engineering. The Sebenza 21 is a marvel of simplicity, and the newer offerings, without the pivot bushing, and multiple tools needed for disassembly, and differing screws and fasteners, IMHO, are not actual improvements on the purity of concept of the 21. This is not to denigrate the 31. Again, I give CRK full credit for thinking up ways to remain relevant in their field. I've also lusted after a Inkosi, but for now, the Umnum fills that desire. And I am perfectly happy with my four 21s. Thanks, OP, for a well rounded and interesting review.