Is it possible to visit both Universal parks in one day and still enjoy both of them? I am planning to go on Sunday, Feb 12th.

I have only been to IoA once, back in November, and we were able to finish the whole park in about 4 or 5 hours. It was a 35 minute wait for HP, and everything else was walk-on. Do you think we can expect the same type of crowds this time of year? We would be going at park opening at 9 AM, and staying until close, 7 pm.