I have been reading up on coatings for firearms. I know that many neat things can be down with coating now a days. My big question is, What is the big difference between Cerakote and Duracoat??? And, which should I use and why? It seems like whatever I read, one site will say Pro Cerakote and Anti Duracoat and then vise versa. I have a Rem 870 that I use for work (law enforcement). I have had it out in all kinds of weather. Rain, Snow, Heat... I have had it against a tree for support and it has bumped into a wall from time to time in narrow houses. I want something that will last in all weathers and wont scratch... Any suggestions and advise?!?!? Thanks!!