Last month we were let in early to sign up for JTA. We had early entry breakfast reservation for 8:05, but they were letting in people for either breakfast or for JTA. We went to sign up prior to breakfast and only had a few people in front of us. My daughter signed up for the 11:40 show. We choose that time. She could have gotten the first show, but I didn't want to rush breakfast. When we came back around 11:00, there were still slots open for later shows because I heard people signing up for those when I checked my daughter in for her show. It wasn't a a particularly crowded day so...take it for what it is worth. If it is really important to your child, I would still get there no later than RD or only a little after just in case especially if it is predicted to be a busy day.