Interesting about the Hogback vs. the Squall 2! Thanks, Franco, for the diagram and info! Folks, forget what I said about the Hogback footprint!
Part of the problem was that I didn't want to buy another tent, particularly with the older two grandkids to the point they want their own space. I suspect that the youngest, with his developmental issues, will want to stay with Mom and Dad for a few more years. However, there will come a point that all three kids will be in the Rainshadow and Mom and Dad in the Squall. I suspect that at some point thereafter Mom and Dad will want the kids in a separate campsite, LOL!
In the meantime, Granny and her dog, as long as we're around, will be in the Tarptent/Gossamer Gear Squall Classic. (A great design by Henry, IMHO, especially the zippered vestibule!) Too bad GG has discontinued it.
All of these are great tents, IMHO!