I'm going to do ED this year and want to do Black Sapphire. My E90 is silver and I know nothing is easier to maintain than that. Since so many of you have Black Sapphire what has been your experience been with swirls, scratches etc. I know it's tough to keep looking clean but I'm not doing silver or gray. If you have owned jet black, is it easier to maintain than that color? Thanks for the help.