I used to dabble with some tarp camping, but as a lower Michigan resident, I can no longer justify the risk of getting Lyme disease. One of my climbing friends has it and his health is now a constant battle. In fact, he’s flying back out to Maine in June to see a specialist.
I have a bug-bivy, but I’ve realized that my Durston XMid-1 more or less gives me the same flexibility.
On a 2015 trip to the Wind River range, we were camped at the Green River Lakes trailhead and had a big NOLS group set up camp on an adjacent site before heading toward, presumably, Titcomb Basin the following day. 3 or 4 of the girls camped under a very large flat tarp. That must have been a cool experience that they’ll never forget!