I've been getting NUCCA Chiro for a while now, have held my alignment since February. I've been seeing another Chiro who does active release technique (a sort of massage) for a hamstring injury, but he's also done some neck work. He thinks I would benefit from some adjustments to lower cervical vertebrae, to loosen up my constantly tight neck. I've been wary of non-NUCCA adjustments, as they advise against them, but NUCCA hasn't really done much for my neck tightness, and thought I might give this a try.

I trust this guy a lot, he said he doesn't do the aggressive twist and crack method. Anyone have experience getting other Chiro adjustments while seeing a NUCCA Chiro? Frankly I'm a bit skeptical of their claim that getting c1 in place will magically solve all problems.

For my RSI/TOS injury, I had found a very good multi skilled chiro, he did the c1 c2 as well as other adjustments and PT modalities.
He was very gentle in his adjusting and his skills were very beneficial for my upper back & neck pain.
I think if you trust him , go for it.. you can tell him to stop at any time if you feel a need.