Share 'Shoulder harness pressure issues, and question'

I currently wear a very soft but conventional silicone shoulder harness.   Due to some anatomical reason that I cannot change, the harness now started to cause problems by pressing onto my brachial plexus. It has come to the point where two out of three nerves of my ('sound') left hand are (slightly but measurably) damaged and to start with, the harness design needs to address that. The damage wi…