I'm having problems with late lockup on my K2--the lock up is late to begin with--80% (it's universally late on every K2). And now the lock has traveled to almost 100%. Blade play will happen in the near future and this knife is only a couple months old.
lobsterDid you get lubricant on the lock face? If you did, clean it all off with something like rubbing alcohol. Keep that sucker clean. Being what appears to be slightly hardened titanium, you'll want to do everything you can to keep it clean.