Pteranondon Flyers has a kid rule, but if you show up early and there is no line, they let adults on. If you go into the park early, there's time to ride Hulk (Front, Back), Spiderman, Dr. Doom, then walk fast to PF. The decision is up to the cast member standing at the entrance. If the line is short, they'll let you go.
If you ride Hulk then go straight to PF, you'll definitely make it in time.
During non peak times, they close off the back sections of the park for a couple hours in the morning. But in the summer time, just about everything opens when the park does, especially the major rides everyone wants to go on.
The cool thing about showing up early, is they don't have a rope drop. Instead, the order you arrive the front gate is the order you go into the park. So getting to the gate early and waiting is huge. This is much fairer to those who show up early and wait at the gate. You go into the park, have it all to yourself, while everyone else is filing thru the gate. If you go in first, you literally have the whole park to yourself for a few minutes.