There really is no "racing through HS", as no guests can leave the stage until after the opening show. It is absolutely imperative that you find that JTA sign and get as close to it as possible during the opening show. Your husband should pick his way through the crowd, get as close to the stage as possible, and then turn to the left. A CM holding the JTA sign will be standing right there, along with another group of CMs holding light sabers. The internal rope will drop after the opening show, and guests wanting to signup for JTA will be escorted to the signup area. While CMs hold people back, they do walk very fast, and tell guests not to run, there is a lot of jockeying for position. If you're at the front the pack, you're good to go, but if you're at the back...you'll be in a long line to signup. When we were there at the end of August we overheard people saying that they were at the back of the pack the day before, waited nearly an hour to sign up, and all the slots were taken for the entire day before they got a chance to sign up. So definitely be there before opening, and definitely make sure your husband knows where to go.