Most definately do the tour when you dont have the Express passes. That way, if you do plan on doing the other two days at the park, you can use the passes for the park and not have to worry about waiting in line. But the days that you dont have the passes, if you plan on being at the parks early, there is no reason that you shouldnt be able to do a lot of the attractions at least once. Hit the big stuff like Hulk, Spider man Dr. Doom, and the water rides early. You'll find that those get the longest lines the quickest. Dueling Dragons, Posiedons Fury and all of the attractions over at Suess Landing usually dont have a line much over 20-30 mins during the day. The same goes for the Studios. Mummy, Shrek, Jimmy Neutron and MIB get the longest lines the quickest and should be done first....probably Shrek, Mummy, and MIB, then if you feel like doing it later Jimmy Neutron. All of the other attractions, especially during the week, will not have long lines. Spring Break usually comes a little bit earlier than Easter week for the Orlando area, but I'm sure there will be a couple of college kids around during that time. Hope this helps.
