Armscor said my concerns were verified and repaired: it was tuned and test fired.
Got the pistol back (pretty good turnaround time), went to the range and the pistol experienced the same issues I had before I sent it in for warranty repair. I got FTEs every 47-45 rounds for 227 rounds until the FTEs and stuck cases happened every 4-6 rounds and one after another.
I'm wanting this pistol to work properly and be reliable because I really like it when it works.
Anybody have similar problems? If so, what did you do and what was the outcome.