I am retiring from AD as well....will be retired as of 01 July. I am doing the BDD process and had my VA physical 20 March. I have been told by the DAV folks who helped my file my initial paperwork that under the BDD process I should have my rating by 01 July.

Key to BDD is you can not start it until 180 days from retirement date and no later than 60 day prior to retirement date. IF you miss this window you go into the normal process and they "advertise" 6-18 months to resolve your claim.

If you can .....go the BDD process.