My P 07 decocker failed to drop the hammer the last time I reinstalled it - the lever rotated but didn't contact anything. I corrected the problem by reseating the cam on the decocker shaft, after some forum searching, and it now functions. Initially I thought the sear wasn't positioned correctly as I could shift it slightly and get the decocker to work one time only. I can't quite see how the cam lifts the sear - can anyone explain how or where it contacts the sear? Thks, Larry