Hi guys I'm new also. I've done the fluff & buff thing but with a full mag the slide will not return fully. When the count gets down to 3 it works great. It's a J1Dxx series. I've fought with it and put 200 rounds through it. A slight bump on the slide moves it back in place. I was going to send it back to KT but I can't find my receipt. Is there a way to fix it myself or will they fix it if I can't prove I'm the original owner?