Do they fix the out of tune guitar during Who'll Stop the Rain on 8-20-81, or just let that go?
I hope not. To me, the charm of these vintage shows is their imperfections. It's why I still listen to my boots more than official releases. And why I haven't listened to Live 75/85 in about 30 years.
I still maintain the 12/31/75 Tower show has been the best so far. The mix, clarity and ambience of that recording is outstanding.