There are definitely no hidden buffs or hidden damage with this build outside of WKL.
You can count on doing single target dps of roughly 9-12X your pdps unbuffed.
250k dps = 2.25mil - 3mil single target dps
EDIT: The high end (11-12X) is for people with high CC, IAS and 25% WKL.
*Sigh* I can never get the hang of what's additive and what's a multiplier. Thanks, for clearing this up, Fitz!
Thought I had figured out the FitL conundrum, but upon further testing it turns out I have not. Oh, well - better just do it, than over-think it, I guess.