I have general admission floor tickets to U2 in Vancouver. How early should I get in line to get good seats?

I know the other answer was 5:30-6 if the show is at 7, but realistically, you want to be there a lot earlier, especially for the Pasadena show. I don't think the Vancouver show will be as crazy (we're expecting 100,000+ for the Pasadena show), but I'd plan on getting there a good three hours early. I've found that usually the majority of people come about two hours or less (with a few there way before that), so getting there a little earlier would definitely help. Oh, and then running like crazy once you get in! Enjoy the show...I just saw two of their shows in Dublin. Not as good as the arena shows, but they still know how to rock a stadium.