Safety
I have just had the same problem. Check the condition of the safety drum plunger that seats in to the safety drum. If the point on the plunger is worn, or rounded it may not be fully in gaging into the safety drum detent hole. Also the spring that connects the safety drum plunger and the extractor plunger may be weak. I called Earls and bought the complete assemble, both plungers and spring. I also polished the section of the safety drum that contacts the hammer when the slide recoils and goes into battery. Don't remove any metal just polish the drum to make it slide over the hammer more smoothly. So far this has worked for me.
I have just had the same problem. Check the condition of the safety drum plunger that seats in to the safety drum. If the point on the plunger is worn, or rounded it may not be fully in gaging into the safety drum detent hole. Also the spring that connects the safety drum plunger and the extractor plunger may be weak. I called Earls and bought the complete assemble, both plungers and spring. I also polished the section of the safety drum that contacts the hammer when the slide recoils and goes into battery. Don't remove any metal just polish the drum to make it slide over the hammer more smoothly. So far this has worked for me.