I just bought a Pro CDP II and ran about 300 rounds it and then...stovepipe. Factory full metal jacket too... I asked a friend who used to shoot competition matches with a 1911 and he said it could be a variety of things from ammo to ramp and throat. The ammo is good factory, it's been ramped and throated and no malfunctions until then. He told me that sometimes if your not holding the 1911('s) really tight, they have a tendency to sometimes stovepipe. Never heard of that. Anyone else?