We are going to HS on a level 4 day at the end of October, should we use a fpp for the frozen singalong? I am hoping to get into the 11:30 or 12:35 show.
If you're looking to do the 11:30 show and the parade is still going on (haven't caught up on news about whether the parade will continue after the end of September), then you should be fine without a FPP. We did the 11:30 show last weekend and the entire upper section in the back was empty at showtime because most people were at the parade.
I ran a tp and the other waits were max 15m so nothing super valuable... Therefore I went with FPP for frozen so I would know I could have my choice of time.