I've been working on this American 1205 padlock for a few days now and have no luck with it so far. I am familiar with security pins but this my first American padlock experience. I have read everything I could find regarding the lock but yet to come across a technique that would work. The main issue for me is finding the binding pin, regardless of the tension everything seems springy. Every once in a while I find one and hear a few clicks but then......nothing. I have tried lifting very gently as to not overset the serrated key pins but that doesn't seem to help. The only thing I haven't tried yet is raking it. Can someone that is familiar with this lock please point me at the right direction.

