Hello all. I recently purchased an emerson sheepdog that was used but in mostly new condition. Playing with it for a couple of weeks the lock up was consistently 30%-50% regardless of how hard I snapped it open. There was alot of dust and lint inside the liner so I decided to take it apart and do a full cleaning and lube with ballistol. I did make note of the order of the stand offs were on the knife. The screws for that might have 1 or 2 not in the original order. Now the lock up is at least 50% to 100% and releasing the blade is significantly harder. Not hard enough to need something to pry it back, but it does take way more effort that it isnt a one handed operation anymore. Changing the pivot tension from very tight to very loose does not affect the lock up action. The knife mechanics seem real basic and I cant think of what would change the lock up like this. Does any one have any ideas as to what has happened and what the solution is?