The physiatrist I went to & his co location PT place seemed to be based more on rehabbing from acute sports & injuries than a slower appproach that we with TOS need.
They may tend to encourage you to strenghthen before the pain and symptoms are resolved.

We have a Drs & PTs sticky thread at the top of the list that might help you locate someone close.
http://neurotalk.psychcentral.com/thread135.html