[fjs08]

I make it a habit never to do early morning Extra hour parks. They seem to be overcrowded.
Late hour Extra hours are a different story. I love to do MK on those nights.
It's crowded but if you ride rides during parades or fireworks, they are pretty empty. That is of course if you don't want to see the fireworks. Or do an outdoor attraction during the fireworks so you get the best of both worlds.
You have to plan during the parades though so as not to be caught in the crowd or "trapped" by the parade or ropes. Most of the time, there are cross walks along the parade walk up to the time of the parade.
Frank