4th job Single Target DPS

I don't know how you did the Dual Blade calculations, so I guess I'll give out a few points. As far as I can tell, the speed and delay of Chains of Hell (there's a delay after a successful CoH attack, before you can cast dark sight again) hasn't changed post-BB. Fatal blow has been nerfed to a level in which it's obsolete, so DBs either use Dark Sight + CoH + Upper Stab + Upper Stab, or just Upper Stab. Mirror Image works differently in that it's now a multiplier of your skill damage, but it still can't critical and it isn't affected by Final Cut (including its passive effect). Final Cut basically doubles your damage (same as pre-BB).

I don't know if you incorporated Pirate's Revenge, but it would be useful as an option to turn on/off.