I currently play with the Volkl PB10 Mid and prior to that the Volkl DNX 10 mid and really like both of those models.  I've recently moved to a much colder climate and have been experiencing a lot of shoulder pain (front) due to bicep stress.  I have had to play with DNX 10 (my backup racket) a lot lately (stringing is a slow process in Austria)  and it seems to aggravate the problem much more than the PB10.  As I start to look for new rackets I would like your opinion regarding the new Volkl Organix 10.  It has a 98sq head versus the 93 I currently play with and has a significantly higher RA rating.  Does the head size play a significant role whether a racket stresses joints or not.  I string my rackets at 50lbs and generally use Wilson NXT Tour 17g strings.  Any thoughts.  Right now I'm leaning toward buying new Volkl PB10 Mid rackets, but would appreciate any ideas.