Bos1: sorry, I wasn't ignoring you - I didn't notice your loooong reply until today!
Firstly, the setting exercises are hardly exercise at all. Badly named. It's just moving your shoulder kind of back and down a bit and holding it there. Not difficult to do but difficult to maintain - you're supposed to remember to constantly hold it in the right place - when sitting, typing, walking, driving, running - all the time!
I recently had my swim technique assessed by a friend of a friend who used to swim for Scotland and who sounded like she knew what she was talking about. She said that I was bringing my arms forward to enter the water too much diagonally (in front of me) rather than just straight forward, and also that I was shortening the whole stroke and instead of keeping my arms extended and pulling back for the whole stroke I was cutting it short, bending them at the elbow and bringing them out of the water too soon. I listened to her advice and concentrated carefully on making the adjustments she said, only to have my shoulder hurt twice as much as normal the next day! I can only assume that I'm swimming a bit oddly to work round the shoulder problems I've got.
Can you explain in a bit more detail what you mean about using your traps to bring the shoulder forward please? I do go to swim training sessions involving swim drills etc, but it's just basic adult swim drills at my local council pool - the coach just tells us what to do and doesn't critique individual swimming techniques or suggest improvements. Perhaps I should look into finding myself a good swim coach for some 1-2-1 sessions.
Thanks for pointing me towards the Swimsmooth site - I didn't know about it. As for recovery time and muscle condition etc, while like I said I do have reduced strength/muscle mass in my bad shoulder compared with the good one, I've still got way more upper body strength than most other females as I used to do a lot of heavy weight training/powerlifting. I was actually told that that was likely what started the problem off - when I had my surgery done I was in a ward with half a dozen other people all getting the exact same surgery and they were all huge big chunky blokes. The surgeon said he'd never seen the condition on a female before, and almost never on a guy who wasn't either a rugby player or a weightlifter...
Cheers for your advice - I really appreciate it. 