I don't get those guys that always cry about there shoulder problems... Even when I injured my shoulder I still kept doing behind the neck presses pretty heavy and didn't feel nothing wrong. I do know some tricks to cure them though. Here is a clue... visit intensemuscle.com
3 years ago I was doing Weightlifting in high school and I got a subluxation in my shoulder from doing snatch.
every now and then, I fall or even if I sleep the whole night in a wrong position, my shoulder go out of his axe
it's not only painful, yesterday I couldn't even raise my arm more than 3 or 4 inch in front of my body
went to the Chiropracticien and now I can move it in every position but it will still be painfull for a couple of days
it fucking sucks, I can't do heavy dumbell presses now because of this