I just detailed my carbon balck car for the first time this past weekend. There was some micromarring/swirls scattered through out. I used FPII with a polishing pad and 99% of all these marks are now gone. I finished it off with Z5 and it looks like new.
http://www.autopia.org/gallery/showgallery.php?ppuser=19907&cat=500&thumb=1
http://www.autopia.org/gallery/showgallery.php?ppuser=19907&cat=500&thumb=1