If you had a choice, would you go on a Thursday or a Sunday night, end of September?
I like thursday, @Brian will be putting out another which party to go to video closer to the summer i think but here’s his 2019 one - might help watching this then looking at the crowd calendar
It’s not exactly what you asked, but it’s on-topic for anyone else looking for MNSSHP 2020 info. If you look at park hours in August, you’ll start to see 6pm “closing” times for MK starting 8/13/20. This most like means MNSSHP is starting EVEN EARLIER than EVER this year - August 13, 2020
(I love Halloween, but even I think that’s too early)