I'm Group 5 because of my AA credit card. I've seen Groups 2 & 3 called within moments of each other because so few if any people step forward when 2 is called. When Group 4 is called, there's a huge flood of people. I actually asked the GA the last time I flew, what is Group 4 because there's so many people? I couldn't hear what she said so I just smiled. So what is Group 4, there's lots of you!