I've always like the original lockup on the bucks, very secure and almost no way for it accidentally come unlocked. The liner locks are fast but I just don't trust 'em that much but I use them but never feel as secure as there is the danger of them coming unlocked or due to debris not locking on opening. How secure/tight/frim is the frame lock on the Buck USA made Wiamea? It looks much thicker than a liner of course but there is also the point of the locking part being the handle and subject to movement. Basically I was looking at a Koji folder or a Wiamea and figured I would ask if the Wiamea was AS secure as a liner lock. Thanks for any responses! Bilrus61 PS I decided to pass on the Mammoth ivory Buck 55 as being not durable enough for everyday use ivory wise.