Hal.....i understand what you're after. I just hope you understand that ANY answer you get here is going to be completely speculative and absolutely not grounded in what is happening with YOUR shoulder right now. I would just hate to see you doing something on your own that is going to either delay your recovery or damage the shoulder in some fashion.
I wish you well and hope your recovery is fast and complete and you're back on the court soon.
Volkl V1 Classic MP
Pacific Gut 17 gauge mains at 54lbs/MSV Co-Focus 17L gauge crosses at 50lbs