Yes, it's true that they won't let you into the park until 8:00am. I also had a Cindy's PS at 8:05 and that morning they didn't open the gates unti. 8:05, with the crowded that had assembled, I didn't get to Cindy's until 8:20!! Not a problem, since they know the problems at the gate and I was seated promptly. I'd be at the Poly monorail station by 7:30 and you'll be fine.