Nero- Well done and congratulations.
Some further comments:
1. I have a SS# with the gender marker as female, as a result of my name change order having one of the points that "This person shall be known for identification purposes as female". I have NOT had GRS. The judge signed the order without reading it. When I took it to SS I showed them that part and they changed the gender. This was in 2001 and I have heard that they now require a letter stating "irreversible sex resassignment surgery".
2. Some physicians will assign top surgery as "irreversible sex resassignment surgery". I have known several FtMs who have the gender SS# as male because of top surgery.