Then when I got that all hunky dory I started having progressively lighter and light firing pin strikes with associated FTF's. I read the other threads dealing with this issues and turns out it was a multi part problem. First, I had some lead buildup on the breech face where it meets the receiver. I used some lead solvent (Bore Tech Rimfire Blend) and a small allen wrench with a patch and got the lead out. Better ignition, but not perfect. I discovered the chamber had the lead ring and wasn't allowing the bullete to seat 100%. So, I cleaned the chamber with a .243/6mm brush. This helps tremendously.
My still unresolved problem is the Clark Hammer Bushing is not quite right and is causing the Factory MK III Hammer rivet/pin to drag as the hammer goes forward, which is slowing the hammer down so I'm still getting very occasional FTF. Some ammo due to case hardness being harder than other- all that military surplus .22LR

Do you guys think that the rivet and bushing will wear in? Why didn't I have this problem before. I shoot my pistol probably at least 500-1000K a week and sometimes a whole lot more.
I've learned with suppressors that your gun gets way dirtier and far more leaded than an unsuppressed pistol. I can't imagine anybody that plans on doing some real shooting getting a sealed .22 can (especially with the "Gemtax" and how the can't just charge you materials cost and transfer your serial # to a new can when your old one fills up with lead solder and carbon. Sorry for the long post.