I've now run about 400 rounds through my PF9 since Kel-Tec sent it back. (Had originally sent it in for a FTExtract and Slide Peening issue.). No more peening issue, but it now seems that I get a failure to extract on about round 5 or 6 from the first magazine that I run through. I've been sticking strickly to Federal Champion. Out of the 100 rounds that I ran through it last night, only 1 FTExtract and it was from the first magazine? I only have one magazine and I don't keep it loaded since this is not yet my ETC weapon. At the end of each range trip I take it home, thoroughly clean and lubricate and reassemble. I even ran 15 rounds of Federal JHP though it last night and those ran without issue. It just seems to always be that first magazine? Maybe it's limp wristing? Seems early in the range trip for that since there is no fatigue? Any thoughts?