Yeah LA Fitness is where I hang. I got one next to home and one next to work.
For my left shoulder irritation I just got to make sure I arch my back, lower my shoulders back as per my acupunture/massage/ex-wife says to do.
It seems so easy to just avoid the irritation by consciously not bothering it. I used to breeze through it and shrug my shoulders to excuse the pun.
Now I do a warmup with no weights and feel for the good place where it doesn't hurt. This is always with my back arched more consciously and my shoulders down and back.
This is not unique to me, for one, and Tim Ferris has some pictures in his book that show that this is how shoulders should be placed.
And why are you asking me? I'm not the expert. . . . well . . maybe I am. Ex-wife also showed me a stretch for the shoulders and front that I've never ever seen anywhere.
Lie on your stomach, do a keegle with your hips against the floor and raise up on your elbows and fists, arching the back from the waist up, kinda pushing chest and abs out and forward. It stretches the abs and chest. Who ever thought of that? The point being she pointed out (and she is not the only one) that we spend our day hunched over our computers or whatever and we lift weight for the front side but we never balance the back.
The other stretches I got out of "7-Minute Rotator Cuff Solution" years ago. there is a chapter on shoulder injuries and stretches for them.
As far as cables go, you are right on about all the science and the anectodal too that no one uses them. My frickin' pecks hurt today by the way. And the movements are exactly what you talk about in other posts where you reach peak compression point with the hands close together yada yada
here are your obligatory smilies. I put them out of the way so as not to distract:
