Yes, especially when I get them dirt cheap and then fix it.
Of course, the spine whack is still not certifiably a test recognizing the knife's integrity. Some think it's an exercise in abuse as few if ever would experience failure while holding the scales in a normal manner. Which invites testing the knife holding the scales while whacking the back of the blade against hard objects until it fails, and asking yourself, what did I just prove?
Now, lock failure in use while torquing, twisting, or prying, that's more real world, but how many of us are going to buy stainless kevlar fish cleaning glove and lay into a test routine to discover that? So we use the spine whack. It's really not fair, and it's no wonder most makers avoid the whole subject other that suggest it's abusive.
I have a Buck Mayo TNT that won't close all the way to the detent, but that's little problem in tip down carry. It doesn't affect my opinion at all - it's a very good knife, and a great user.
