If you want a good spot for Spectro, I would make it for 5:00-5:30. If you walk out of the restaurant after 6:30 you may not be able to find a decent spot. If you want curb seats, you need to find a spot before 6:00. Sunday night shouldn't be as bad as Saturday though. I've been there on Saturday nights where Main Street and the hub in front of the castle are wall to wall people one hour before.