I think EQ its also to strike Tyranitar, which in weaker in defense instead of special Def.
Why don't you try ChoiceSkarf over ChoiceBand on Victini? Just to have the possibility to strike two times under sun, with the band after V-Create you become slow and often you can't shoot the second V-create!
Lets try, you don't loose 1HKOs because under sun Victini its 1HKO also against Chuck Norris!