AP is in full pirate mode for Pirate Night. If you have AP twice, you're in luck as you get to see the new show. If you only get it once and it's Pirate night, you'll not see the show.
Wow, now you have me worried. I would cancel Palo for AP, but it sounds as if AP is on the third night rotation you miss out completely. This sounds like very poor management on Disney's part, considering how much they market the AP experience in selling the cruise. I would think a third of the passengers would be irate if they miss the AP show; I know I will feel very cheated, since it is part of what I am paying for!
Is there a way to find out your dining rotation prior to the mailing of the cruise documents a few weeks before the cruise?