Thank you Michael. I read the whole thread. The A&P part was a review and the foreign names of the strikes were (I confess) new to me but they were translated in the thread so I understood your post.
Let me explain my confusion because you probably know the answer (and maybe thought no one could be THAT confused).
I get good enough effect on the nerves coming off the brachial plexus by applying pressure or grabbing UP into the arm pit. It numbs the arm. Then, I see that my notes from Frank Trejo said to hit it into the torso as toward the heart. Indeed the thread indicates enough damage suggestive of striking in towards the heart.
What is(are) the correct angle(s) for this strike/attack? Thank you in advance.