I know we are going to be at Disneyland during a very busy time, so wondering if we should begin our trip on MM Sun 8/21 or Mon 8/22. If we start on Sun, we will take advantage of two MM, Sun and Tues. But wondering if that Sun will be a mad house and we are better waiting to start our time in the parks until Mon. We will be there from 8/21-8/25 and staying at PPH. Thanks!