My first PT1911 shot flawlessly right out of the box. Now I've got a second PT1911 and this one has some issues. The plunger spring was laying sideways, thereby preventing the pistol from returning to battery. My friend fixed that. This Taurus doesn't like mil-spec mags either - but it rejects Wilson Combat, Novak and McCormick. Regardless of the ammo, it prints extremely low at 10 yards (about a foot!). I thought the low shots were my fault until my friend (IDPA Master) shot it and he too shot about 12" low at 10 yards. He even tilted the barrel upwards to make sure it's not a "familiarization issue with Straight Eight sights" matter. It's not. We were using factory 230 FMJ, 185 JHP and 200 lead RN reloads (Oregon Trail Laser-Cast). We both repeated the drill using his Para and my Rock Island without any problems. Any suggestions for cause or cure for this Taurus? Thanks!