So I stoned my trigger bar and connector, and polished them up just like the guy in the AGI video showed me. Problem is, now my gun doesn't want to go back into battery fully. When I shoot it, everything seems fine, and when I slingshot the slide to chamber a round it's okay. But when I ride the slide forward, or don't let it go with full force, it seems to hesitate about 3-4mm from home. Any possible idea why this happens?