Went to the range again, I shot about 100 rounds through the gun (Performance Center model), and used the two magazines that came with the pistol. Had absolutely no problems. No jams of any type. I am convinced the problem is not a magazine issue, rather a grip safety issue. My wife didn't even want to shoot the 380 EZ this time, instead ran about 20 rounds through the Sig p-238 again with no issues. The Sig just fits her hand better, and the slide is pretty easy for her to use.