Just had a Videki trigger put on a new Colt CCO. It was never fired with the old plastic trigger so I am not sure the problem is the new trigger.Out of 200 rounds the trigger did not return to the ready position 4 or 5 times. At first moving the mag caused it to return. Then it would return when I pulled the trigger to the forward position. Besides the trigger bow hitting the mag is there any other way this could happen? Should the bow be polished? Thanks