Are you looking to watch from the restaurant or the beach. Although it's nice to be able to watch Wishes from your table (if you get a window table that faces MK and your timing is right), it's not exactly the best view and you can't be certain that you can get a table with a Wishes view. Don't put too much stock in trying to time watching Wishes while eating (it's not like CG). The best view of Wishes is from MSUSA, so I would say your better off leaving yourself enough time to not rush your meal and then either get down to the beach or even get to MK. Keep the earlier ADR if you figure on waiting 30 mins or so after your ADR time plus the 90 mins or so to eat.