hi, 2 weeks today and getting very exited. one small dilema; we've only ever been to disney, never universal and are not sure how lmany days we will want to spend there. our son is 6 very soon and is 47" tall. he's well into spiderman, dinosaurs,monsters etc. and dosn't frighten easily. i was more scared watching jurrasic park than he was. anyway, there are a lot of rides that he won't be able to get on so i'm relly not sure what size pass to get. any help would be great thanks.