Yes, so far the campground hosts have permitted us to do so. That is the only way we can get all our group in as there are no reservations. So far, so good. So far I think Betsy and I are the only ones of any of our groups that have had to go to the designated "boon docking" site and we got a site the following morning.
Now is a good time to remind those who will be trickling in starting as early as Monday maybe. Occupy the largest site available and each subsequent arrival occupy another large site and so on until all available sites are occupied. Then meet later arrivals and invite them to share your site. There are some sites that will accept three trailers and all TVs still be clear of the road. This may call for sacrifice for the good or the group. I mean sacrifice like passing up a shady spot for one in the sun or passing up the opportunity to share a campsite with your good buddy to obtain another double site.
The first three rigs on the roster below us are "old hands" and will help you set this all up.
BE NICE to the campground hosts. They have a lot of latitude as to what they permit us to do - or not do.
Betsy and I are looking forward to meeting another group of great folks from around the country and showing them some places most visitors never see. Don't be surprised if that would require getting just a little dust on your tow vehicle.
Don and Betsy in UT