""How, pray tell, did you come to the conclusion that he has such bad habits and that this is leading to a shoulder injury?""
Because that's what a raised scapula is. A bad habit. Did you know that if you open your chest that your scapula retract naturally? Most people walk hunched-over like cowards.
""What bad habits does he have?""
This question was answered.
""He didn't mention anything about an injury.""
There was never a claim that he said anything about an injury. Obviously.
"Unless the advice on this board is that someone should see a professional for every question asked, simple questions don't need more than simple answers.""
That was the advice you brainiac. Cressey and Robertson are professionals.
""If you can see your scapulas in bold relief, the reason for that is lack of muscle in the area, just like those who can count every rib.""
I completely agree. You seem to be arguing for the sake of arguing. That's nice though.
""How you jumped into shoulder rehabilitation is beyond me.""
Then read this...
"A WINGED SCAPULA IS A SHOULDER INJURY or condition in which the scapula or shoulder blade sticks out at the back, particular when pushing against something such as a wall."
""That doesn't mean he shouldn't learn about his rotator cuff, but it does mean none if that is the simple answer to his very simple question.""
I'm all for brevity, but your response, although provocative was not adequate.
""Do you have good posture?""
"I" have nothing to do with this conversation.