What is the danger to the saw, if any, of running a saw without the muffler cover. It came off my Stihl 038 today and gonna be a few days before the dealer can get one. The bottom corners that the screws go through came off and it just fell off and isn't reattachable. I'm using it on a disaster relief team in Cullman, AL so it needs to stay in use if it's not gonna hurt the saw. P.S. I love the way it sounds w/o the muffler.