Thanks for finding that link & site- I'll add it to our useful sticky thread.

my chiro does the "first-rib adjustment" when I need it.
At first it was quite often, but now only if I have done some intensive uses and over did it. I can feel the tension creeping into that area.

I don't think doing "first-rib adjustment" alone is the secret, if the muscles are still tight and pulling on the structures they will just go out of place again, same with most other adjustments.

The muscles/spasms and any trigger points need to be addressed - along with adjustments.
And the longer your symptoms have been around the longer it takes to rework and retrain the body to the better.

I still go once a month for a tune up by my chiro since mid 2004, long term maintenance.