I have read that sometimes at US and IOA they will open the gate up to 45 mins before the scheduled open time, but that all the rides may not be running that early. Will we know ahead of time which rides will be running? Also, If you have a ticket to both parks, is it time consuming to hop from park to park? I am still trying to decide if we will go into US 1st and ride HR3, and then head over and do IOA and come back after that to do the rest of US. It would be great if US opened early and HR3 was running - what are the chances of that? Would we be better off just doing all of US, and then heading to IOA? My daughters will want to do all the big rides and we will only have 1 day to do both parks. I was also wondering, if you have a ticket to both parks, do you have to exit the main entrance of one and go over to the main entrance of the other, or do they have a separate route between the parks for those who have tickets to both parks? Thanks