Hi,
Answers to your questions:
1) I do have full passive External Roation(ER).
2) If I lay on my non-involved side and passively move my affected arm out to full ER and let it go, my affected arm cannot stay there but moves back to where it stops its almost feels like a hinge.
So what do you think my problem is? You mentioned that if I have full passive ER that would be more disturbing and is a different scenario.
I'm doing stretching exercises along with ER strengthening exercises with theraband. What kind of stretches would you suggest?
Thanks for help.