Is it normal for the front of the hood to hit the top of the barrel. It is at the point that you or the recoil cause the two parts to smack together that it appears to be a bind. I am sure that the recoil is sufficient enough to overcome this but I really noticed it when I was cleaning it today. Could this be the casue of the FTE problems (combined with grip problems). Can I use the dremel to trim this down a bit or should I just live with it?