I had my first indoor hang last night at a Cub Scout Lock-In. Me and one of my volunteers hung from the support I beams in the church.
The event went great. The hang time was awesome, but I got colder than I expected and had to dig out the Coleman 40° bag and climb in. I also learned that I don't like a sag angle of about 60°. The next time I'll remember to take a much closer look at that when I hang the Atlas Straps.