I'm taking my 12 y/o for the first and probably only time in Aug. I only have 2 days to do these 3 parks. I had planned on doing seaworld in less than a day and then relaxing and then another day doing IOA and USO in the same day with the express pass. Will this work or should I do a full day at USO and split the other day between SW and IOA? Any help is greatly appreciated.