I've read lots about the super soft BMW Jet Black Paint and what a pain it is to keep swirl free. I'm about to purchase a 335 and it seems like the only black exterior available to me for immediate delivery is the Jet Black, not the Black Sapphire. Is the Jet Black really impossible to keep swirl free, even with dedicated soft MF towels and careful treatment? I don't need 100% perfect, but would like 95%+ perfect. Any experiences? Thanks.