Blah, they were a total disorganzed mess when I went a couple weeks ago. There was a big mob waiting at PP and they were letting people through on the right side. The only way you could know this is if you were at the front of the mob and they told you so.
So after working our way to the front of the mob we find the back of the line letting people go to TS. It meandered to the back of the mob on one side of the planters, them back up to the front. It then crossed over to between the planters and the railing and meandered to the back side of the mob before coming back up to the front for the last time before being let in.
Ofcourse on the last segment of the loop where we are forced to the backside of the mob, they stop letting people through. We have to wait there for ten minutes for the official rope drop and now we are behind every freakin one! I was so angry, we were in line for about an hour before we got on the ride. We actually missed the FP time for Soarin because of it, but they still let us in.
Being in the GCH you shouldn't have this problem though and be able to get up front pretty early. Just make sure you look for that line on the very right if there is a big crowd.