Whilst we're talking about 10 and 11 speed derailleur compatibility, chains etc, is anyone regularly removing the supposedly "non reusable" 11 speed kmc missing link to clean or rotate chains? What are the latest dura ace 9000 chains like? Can you use a kmc missing link with them? Also, in some pics I've seen the da9000 chains look black. I like the look of black chains but there's no way I'm paying $100+ for a black kmc chain,