Lefty Multiball?
As noted in my blog yesterday (second segment), I'm having major shoulder problems. They have been ongoing since October, but became dramatically worse in December at the U.S. Open when I went for a big forehand and tore (or technically "frayed") my rotator cuff. That, along with shoulder tendonitis, bursitis, and extremely tight muscles, mean I won't be doing any private coaching for a while, as explained in the blog.
It also means I can't feed backspin repetitively. When I did this on Saturday, my arm literally went into rebellion, with every part of the shoulder screaming out in terror, "Stop It You Fool!" I stopped a little short of 90 minutes into a two-hour multiball session with a very inflamed shoulder, and it's been hurting ever since. I can feed regular topspin no problem, but when I open the racket for backspin, the arm twists about slightly, and this puts a strain on the shoulder. I experimented all sorts of ways, trying to find a way of doing this without hurting the shoulder, but couldn't find one. (It also...