I have been breaking in my 3AT, and am noticing that I am having more than the average FTE problems. I read somewhere on this forum about making sure the extractor screw was tight- it was loose by about a half a turn! I tightened it up, and now the S&B 90gr hardball I was using works great, but the 100gr flat-nose reloads I tried still had multiple FTE issues. Defensive ammo is flawless so far (Speer gold dot JHP) but I can't afford to run 2-300 rounds of this for the trial... My question is should I send the gun back to Kel-Tec to fix the issue or should I try to use some blue loctite on the screw? I am concerned that I will back out the screw too much and the firing pin will move and cause even bigger issues.