Thank you this is good information. We are taking our first road trip in our 2020 Model S Long Range+ from our home in St George to Boulder, UT. ABRP suggests a 9 minute ChaDemo charge in Cedar City to make Boulder comfortably, but your experience indicates it might be doable in one shot.
We’ll charge overnight at the Boulder Mtn Lodge for the return trip.
I did it in a Model 3, and Torrey is further than Boulder. You should easily make it in the Long Range Plus Model S. I went through Duck Creek Village from Cedar City. I also went into Bryce National Park which consumed a little more energy than you will need if you skip Bryce.