Trust me, much to the annoyance of my wife, we get get to the gate 30 minutes before the 30 minute early resort guests window.
The 30 minute early opening and rope dropping does make a big difference for sure...but by the time you get to 1 or 2pm you're just in it with the rest.
I mean...im normally done at AK by 11.30/midday, completing the whole park. And that is all down to Rope dropping FoP - walking on Navi, strutting down to Safari...doing a couple of EE before polishing off the shows and our comedy go on Dinosaur before a midday lunch at Y&Y and getting to the next park for 2pm.
With much much trial and error I've managed to find the best way to max out each and every visit to all the parks, But with the best will in the world, it would be impossible to get anywhere near what we achieve without G+....although AK would be the easiest park to do without G+