Im pretty new to HK and firearms in general. I purchased my HK45 a few months ago and it has fired 1000 rounds flawlessly. I installed a left hand safety switch and now it won't decock. I removed and reinstalled it 3 times and the same issue. Everything but the decocking function works fine. I think the hammer and spring that apply pressure to the plate that controls the safety has too much tension. If I apply pressure to the top of the plate it will decock fine. What can I do to remove pressure from that plate? Thanks