What you should consider is that all the nerves that supply the shoulders, arms and hands, all come from the brachial plexus, which is where nerves from C5-T1 intermingle and interconnect in such a fashion that it’s hard to completely seperate the anatomy Vs function.
What I mean is that nerve C7 (which exits between the C6/C7 vertebra), will have some degree of involvement with nearly all the nerves in the brachial plexus (look at a diagram if you want to see what I mean).
You also have to consider a double or triple crush scenario. By this I mean that a nerve (or group of nerves) can be compressed at the exit of the spinal cord, and then be compressed again at the scalene triangle, behind the pec minor, in the axila, at the elbow and also by the muscles in the forearm.
All/any of these compressions will further compromise the conduction velocity/ability of the nerve in question, compounding any dysesthesia (numbness or tingling, etc).
So you should consider releasing the tissues of the scalenes (without traumatising your C6/7 IVD), the pec minor, the triceps (near the elbow/aponeurosis), the flexor carpi ulnaris (near the elbow), the pronator teres and the extensor carpi radialis.
Thanks, that is helpful.
The C5-T1 area is a mess for me, degenerative disk, bulging disks, bone spurs, and damage from an auto/pedestrian accident (I was the pedestrian). It tends to get worse as I make progress in the gym. So I guess the question is, how should I go about releasing at these points? Is it, put a tennis ball there and push-hold?