Watson, I don't know if this set-up will help with rotator cuff injuries, however it sure took the stress off my shoulders, neck and back. It is similar to the Jennoop system but I used Leah Day's system as my inspiration. Cost was minimal but it sure made the quilt easier to move, as you only have to move the part that is touching the table and not wrestle with the quilt falling off the table or onto the floor. I love it. My entire thread is here:
http://www.quiltingboard.com/picture...t-t276062.html but here is a picture to give you an idea of what I am talking about.
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