I have a 2002 year model S@W PPK/S that is on recall but I never did send it in.I did buy it used but it seem it was never shot from the original owner.I my self never use the de-cocker on a chambered round but will thow it and thumb the hammer down instead of letting it fall free.I have tested it with a live round at the range seem o.k. the gun wil not fire.Also ran it threw a few more test and the gun passes all safety features.I like the gun and have about 500 rounds threw it no jams or stove pipes gun runs flawless