I will tell you after two days on color in FCS2 using the secondaries just saved me so much time even second time out it was faster than the old process.... create the mask, apply the cc etc. Its the same kind of system all under one interface that takes moments to create a mask add the secondary cc and see the results. Create another mask and cc, create another mask and cc and so on, in such a short time.
I dont purport to be a colorist, but for my day to day saves me time and $. Would love to see a real colorist in action on this.