If S&S is anything like years past they’ll open up around 5:45-6.
The AP party is letting you in at 4pm, and then
5:30 pm Dead Exposure: Patient Zero
5:30 pm Slaughter Sinema
5:45 pm The Horrors of Blumhouse.
So, I’m gonna assume you can hit those three and then either repeat them w little wait or bolt to the sound stages. Depending on how aggressive you are it’s a significant head start.
Also, they aren’t letting Passholders attend ad naseum. In the past, I was able to attend every passholder event.