To me, this sounds more like a failure of technique than a failure of equipment.I have a P3AT and it's been a jam-omatic from day 1. Cleaned and did a fluff and buff per the KTOG forum before I ever took it to the range, put close to 200 rounds thru it between 2 trips to the range, had failure to feeds and stovepipes. The most consistant problem was always the last casing would fail to extract on multiple(3 different) mags
Sent it back to KelTec, took it back out and except for 1 stovepipe, got about 1 out of 10 rounds failing to feed from the same 3 different mags from 70-80 rounds. Getting ready to send it back again. I really wish I'd picked up a Kahr CM9 in hindsight, but couldn't find one and figured for the money how could I lose.... I've never had to expend more rounds trying to break in a pistol.