I have always used the touring plans in the back of the book, and they are awesome. This will be my first time ùsing personalized ones, and I was wondering how well they worked. What exactly is the difference between optimize or evaluate? Do I use one, or both?
When you do a personalized plan, first you pick all your attractions, shows, meal breaks, and enter any fastpasses you already have. When you click "Optimize", it puts everything in what it thinks is the best order for you, and tells you how long each wait will be, how long it will take to get between each event, etc. It will try to get you to your meals as close to your selected time as possible. But say you realize that you don't want to go on Splash Mountain at 9:30 PM in February - you can drag that particular event to wherever you want it in the schedule. Then, you click "Evaluate", and it will recalculate all the waits, walk times, etc based on your new schedule, but will NOT move anything around. From that point on, you never want to click "Optimize" again, because it will reshuffle everything back to its "best" plan.
"Evaluate" will pop up a warning if something time scheduled - a meal or a break - is no longer doable because of your schedule - e.g. if you pick Soarin twice and Test track twice before your 11:00 scheduled lunch, it will tell you you're not going to make it. At that point, you can either move the lunch, or change around the schedule.
Short version -
"Optimize" - rearrange everything as it likes to come up with a "best" plan.
"Evaluate" - take things in the order you've selected, and just calculate wait/walk/free times.