Isn't flurry ALSO a full-round action? The neat part about decisive stike is that the double damage DOES apply to AoOs. I've seen some cute stunning fist AoO builds kinda pop off with pharoh's fist from SS.
I feel like there's potential in Quickening the distracting shoutCPsI power to make everyone around you provoke AoOs, but I'm not sure how to handle the non-scaling Will save to negate.