Wow, since this thread got resurected, I'll give an update.
Life is good and I can't wait for the riding season to start! The shoulder is about 90%, I have most of my ROM, and just need to build up more muscle, which is coming along slowly. No more pain! I got a cortisone shot last fall that helped out the scar tissue a lot, and took the pressure off the nerve that was causing the pain.
Been on the bike just a little bit riding around in the field, but want to try the track again on the next practice day. Pretty nervous about that, but like a moth to a flame, I can't not go.
Now a firm believer in neck braces! Don't look at the ruts; don't look at the ruts; don't look at the ruts...