"FSA seems to have looked at what was one of biggest complaints about the CC design. They eliminated the golden gimble, and instead made the bearing the gimble! Thats right they put the bevel into the bearing casing itself, so it sits directly into the beveled cups of your choice. This removes two pieces to the headset that FSA felt did not need to be there, even if it was a novel idea. FSA also included three sets of cups in the tune of 0.5, 1.0 and 1.5 degrees of angle adjustment...for or aft. This gives you six options to choose from and it ALL comes in the box. They also made installation a bit easy with adjustment lines on the lower portion of the cups as well as notches in the lip of each cup to help with visually seeing where everything is lining up" - MyBikeStand.com.
FSA offers this headset in 3 configurations:
Option T Kit (Angle Headset For tapered 44mm / 49mm ID head tube)
Option T1 Kit (Angle Headset For tapered 44mm/56mm ID head tube)
Option S Kit (Angle headset for 49mm ID head tube and 1-1/8" steerer)