I have two NBA keyed Kryptonite locks. I'm trading them in at Citybikes tomorrow for an On Guard or Kryptonite or whatever they have. But for the record, one of the pin/springs on one of the Krypts (an evo disc) is virtually flush with the mechanism, and I can't get at it with a pen. It could probably be done, but it wouldn't be easy or quick. Not that I'm prepared to trust my high zoot bike with it...Ditto with another lock that needed a thicker pen. The question is how much patience does the average BIC'ER have.