It was an interesting experience.  I had an idea of what to expect from watching a couple YouTubes on what they do.  First they measured muscle activity at each point in the spine and figured out what movements caused pain and what didn’t.  Then he did some adjustments that make all sorts of cracking noises in weird places.  It felt good and gave me a bit of flexibility but he said the soreness I have experienced for a couple of weeks could take some time to go down.  I have a follow-up appointment on Monday.  Hoping for the best.