Great set its the one I use. Maybe a life orb or Salac berry instead of Sitrus.
Great but Giga-impact=no. Switch for Dragon Dance. personally I hate outrage but it is good.
Whats the point of Calm mind if you are just going to lower your S. attack with overheat. Use Flamethrower and maybe psychic instead of Calm mind if you want to run a Choice scarf set.
I would use Waterfall instead of Aqua Tail but otherwise great job
Always have hated him do not use him unless with power share set. Get Umbreon(Curse, Payback, Toxic, Wish) for your wall.
Replace Substitute for Shadow claw. You can replace for Sycther(X-scizzor, Aerial-ace, Brick-break, and S-dance) but is only a suggestion
Happy Pokemon battling :)