They ran out of slots for the 10/30 oath about 7 people before me, so after that all of us got the N652 with "civics test/English passed" and "congratulations; it seems you are eligible...etc etc checked off, and when they handed it to to us they said our oath letters will be in the mail soon.
We have provided consultation and completed some DoD H-1B cases. In one of these, the beneficiary was about to reach the six-year limit of his H-1B status, and changed to a H-1B2 in order to be eligible for an additional four years of stay. It appears USCIS itself is unfamiliar with H-1B2 visas. We often end up educating CIS on even the most basic legal issues in this area.