Might as well and you can get one house for sure done by starting from the holding area.
HHN usually allows at least two house to open early.
Other houses will open when the park is officially open to all.
Last year I knocked off 2 houses before the crowds were let in and was in line at 6:30 for the 3rd house.
They could be a few houses with staggering times for opening.
But a lot depends on the day of the week you attend hhn.
Some nights have less crowds than others.
Wednesday is usually less attended than the weekends.
I buy the FF + EP for hhn.
I don't use the ep for those first houses when at hhn.
I save them to go back later in the evening when it is dark and lines are long.
You get a different outlook of the houses when it is totally dark later in the evening.
Since there will be a record number of ten houses this year, I'm sure those doing the public tours will be extremely helpful.
When you do a public tour, you will see all the houses the date you go.
I booked a private tour and our meet up time is at 5:30 as we start our tour at 6:00.
But do not know at this point if that start up time means we meet at La Bamba for a time period until we do the houses.
It's a new game this year with some changes.
We all will know more after Sept 14 has passed and others share about their time for hhn when it opens.