If we're in the park early (planning to be there at 6AM to grab a ROTR boarding group), what time would you suggest heading over to sign up for Jedi Training, if we want to knock that (the sign up) out as early as we can? Is arriving at the sign up area at 7:45AM (on an 8AM park opening day) early enough? (I don't want to get there and be on the back end of a long/time consuming line)