IMHO I think that an 8:00 PS might be too late. Our strategy, learned on this board, is to request a 7:30 PS, arrive 15 minutes early and very politely request outdoor seating (we indicate we would be very happy to wait for an outdoor table). When we have done this we have been lucky enough to get our request granted, but sometimes have up to a half hour wait. We usually order an appetizer, meal, and dessert and end up finishing our dessert while watching Illuminations. We like to provide an increased tip to our server, for holding up the table for such a long period of time. I have noticed that most people who are seated by 7:30, or so, are going to sit it out through Illuminations, and these tables are limited in number, so I think trying for one about an hour and a half before Illuminations is a good strategy.