I bought a new Glock 20SF about a year ago and have put about 500 rounds (both my reloads and factory) through it without a single problem. Last week before shooting, I decided to install a scherer 3.5# connector. Installed it, shot it a couple of times, did not like the feel of it, so I put the factory connector back in. Within twenty shots with the factory connector back in, it misfired (striker did not hit primer hard enough) three times. The striker indent appeared to be higher than normal and noticeably less indented. This happened with both my reloads with CCI 300 primers and a some blazer ammo. I have cleaned it inside and out since the first time, and it still misfires about one in ten shots. What did I mess up, and how can I fix it? Thanks in advanced.