I got in line around 7:00 or so last Wednesday. The line seemed really far back and I was about to leave but the people in front of me convinced me to stay. Luckily I did since I got in on the third batch of tickets and was in my seat by 8:10, just as the show was starting.
I think I may have been in a bit of an anomalous situation since the weather was iffy, but since there's a chance of rain later this week, you may have a good shot like I did.
Scratch and claw for every day you're worth!
Make them drag you screaming from life, keep dreaming
You'll live forever here on earth.