Just an observation: stay & scream is busier than ever this year. To a point CityWalk bartenders are complaining they've lost the "pregame" crowd they were counting on this season. Houses are opening up with 100+ minute waits. Last night, they closed FN@F standby during S&S because it was full.
The ripple effect from this is that the rest of the night is more pleasant. Based on last year, I fully expected a quarter-mile of traffic at 7:40 last night--instead, I was greeted with multiple empty "toll" booths. Security is set up to send you all the way to the JP garage like last year, but every time it's been open to the rotunda with at least one open checkpoint. When I left around 11:30, not the usual rush of people still coming in. I can only assume the event is back to slowing down after midnight, but I haven't had a chance to observe that yet.
Make of this what you will, and adjust plans/expectations accordingly.