Andrew Demko http://www.coldsteel.com/triadlock1.html the designer of the Cold Steel folders with the TriAD lock shows us how he tests his creations for strength and repeatability. I have long advocated properly produced alternative locks to framelocks and liner locks and these videos easily prove my point. Andrew shows us that his lock design can hold over 2000 pounds of force at the pivot with zero damage. Lockbacks, especially those by Cold Steel or Spyderco RULE. This test would easily EAT your Strider, Emerson or Sebenza for lunch!