Character Breakfast & Park Opening

[shoppingmom]

Do you find that the number of Characters differ if you go prior to the park opening then if you go after the parks has opened? 4 years ago we did our first character breakfast(goofy's) prior to the park opening and wow the number of characters was unbelievable, two years ago we went again but this time we traveled with another family and went a bit later in the morning after the park had opened and the number of characters was way down. Just curious for our upcoming trip if we should go before the park opens or is it just a randon thing.