Lol. No, I can't do perform that reverse move. Although I do plenty of dislocates.
The bar is at my clavicle or most times, perhaps slightly on the front of the shoulders.
Present physical limitations i can think of; I don't have good external rotation. That is one thing i need to work on.
The other is that I don't bring my shoulders up very well. The latter I'm not so sure is a matter of limited mobility. I suspect I need to just get it right a few times and feel my way back to that.
Where bar ends up? I think i've had the bar nestled well on my shoulders twice. These were cleans and both times I felt like I got karate chopped in the throat.
So scap. mobility? I will look into these mobility exercises. (Youtube search).
To be honest, I don't know what protracted scapular is, but I have an idea about what it should feel like.