My son and I ate at Cali grill in September. Our Ressie was 5:35pm.
Wishes was at 8pm.
By the time we got seated, got drinks, looked over the menu, it was a little after 6 by the time we ordered our entire meals.
We had the whole meal...apps, entree, dessert, and it was paced perfectly.
We were just finishing dessert shortly before Wishes was due to start.
We finished up, closed our check with the server and went outside on the viewing deck and waited for Wishes to start.
No matter what time you have dinner at Cali grill, even if you finish earlier, all you need to do is show your receipt for dinner. They let you go back up to go out on the deck for fireworks viewing.
I have a ressie at Cali Grill on my birthday in March, at 5:10pm but Wishes isn't until 10pm that night, so I'm going to go back to MK
and watch from in the park, and finish out the rest of my birthday.