Sucks.
I was convinced/forced to respec shadow for Anub10 man heroic today (I tried to resist, but to no avail)
After gemming and enchanting the shadow pieces I had gathered, respeccing and reglyphing and trying to absorb what I could from the shadow thread on EJ I went for it.
3k dps.
Seriously awful.
And all the while I didn't feel like I was doing that much wrong...
Except that I had 4% less hit than I needed and was still wearing nearly all disc gear with int gems and such.
I tried to follow the priority I read on EJ and DoT up the adds in the meantime but it felt like I was wasting so much dps.
And there aren't really any cooldowns for shadow are there?
Well, except for fiend and disperion.