I was thinking 252 hp, 200 sp def, 56 def with a careful nature. really stacking that special defense since thats usually the attacks it gonna take anyways. any experience with dual weather before? typically when i tried it, it was extremely mediocre in the sense that you never really had the advantage. but i think part of that was the fact that you needed politoed AND tyranitar (or whatever your combo was), whereas doing this you can just run tyranitar and free up a vital spot.