"Shoulder pain" is such a broad description. Where is the pain, when does it occur, and under what conditions? I have bursitis in both shoulders. It certainly counts are shoulder pain, however it is quite different than a frozen shoulder or a rotator cuff tear, for example. I know my bursitis acts up if I use handlebars wider than 42; a 44 will splay my shoulder joints out just enough to make sleeping that night very difficult. I'm trying to think of a shoulder condition for which carbon bars would make a difference, and I can't.
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Favorite rides in the stable: Indy Fab CJ Ti - Colnago MXL - S-Works Roubaix - Habanero Team Issue - Jamis Eclipse carbon/831