We will be going to both the parks on Thanksgiving Day - we will be in Orlando for a soccer tournament, so we will only have this 1 day to see both parks. Will we definately need the Express Pass on this day, or would you recommend we wait and see before purchasing the passes? This is also our first trip to UO and IOA, so I want to try to hit all the highlights. Both of my girls love roller coasters, and will want to ride it all.