posted this in the general thread but people may find it useful here.
We were literally the first people into the Finn's holding area and we arrived at 4. They held is for about 5-10 minutes then let us in. There were about 30-40 people there by the time they let us in.
We did stranger things with about a 5 minute wait (waiting for the house to open, 4 college girls cut us, plus a tour got placed in front of us), scary tales with 5-10 mins, stopped for some quick food because my daughter was traumatized after scary tales, poltergeist with about a 20 minute wait, maybe less, then seeds with Express leading to about a 20 minute wait (posted 45), then slaughter cinema with about a 20 minute non express wait.
We didn't do any more houses because my daughter was saturated and exhausted at that point after doing the parks all day, and the rest of the night was AOV, food, and the all the scare zones.
We did NOT need the express, a total waste for us, and if we didn't have to stop 2 houses in for recovery time the original plan would have worked perfectly (Finn's S&S, ST, Scary Tales, polt, carnival graveyard, seeds, slaughter, trick or treat, and ending with dead exposure).
It appeared to be a very, very solid plan, even though we abandoned it.