We got there about 8:30AM for a 9:00AM opening. I thought we were doing well, then we were directed to Africa and the line continued to grow as we searched for the back. I never saw anything like it.

If you get there at 7:00AM for a 9:00AM opening, there won't be much of a wait in the line, but you will still wait 2 hours to get to get in.

This was in August, so it will eventually make sense to go first thing again soon. If you don't want to chance it or wait a long time for park opening, just before closing is the best way so far.