Divinorum wrote:If the first top pin was not set the plug would not turn and the lock would not open. It sounds like you are mixing up your key pins and top pins because you cant visibly see if a lock's top pin is set unless it's cut away. From what you are describing it sounds like the first top pin did set (because the lock opened) and the first key
Nothing is wrong with a key pin settling to resting positions after the top pin has been set. This is normal and happens very often when picking. Look at this diagram and think about it. After re-read up on the difference between key pins and top pins because thinking that all the pins should be pushed up and not visible when picking a lock is a common mistake.
The top pins are set just above the shear line and the key pins (as long as you did not over set them) stay below the shear line. Naturally due to gravity they can and will fall back down to resting position. If you feel a key pin and it feels loose with no spring resistance then that means the key pins top pin is probably set above the shear line and no longer exerting a downward force on the key pin. Of course when security pins come into play this feedback may change a little, but a standard lock should operate this way.
Thanks a lot

