Teeter Hang-Up Inversion Table

My friend Harold let me try his Teeter Hang-Up Inversion Table yesterday. It looks like a torture device and I was scared, but it felt wonderful. My back has been pretty bad since I got home (the only problem with going to Amsterdam is that the flight home undoes most of the pain relief you got from mainlining THC 24/7, at least if you fly steerage like me). Harold loves the thing, but his health problems are quite different from mine. I'm wondering if anyone else with chronic back pain/injur...