I have a mossberg model 935 auto loader, and was wondering about the gas release ports on the gas system. There are two ports on either side of the gas chamber which comes from the barrel, I was wondering if it would be possible to block these and be able to use lower power ammunition and cycle the action? Seem like a bad idea? The gun is made for 3&3.5" shells, and is a really fine shooter... but, I like to explore....