SW 2012 SP2.0

I've been using SW for a long time but I am setting up wPDM for the first time.  I want the drawing Revision property to link to wPDM and update the drawing revision table and title block.  In wPDM VaultAdmin I have the Revision Scheme tab set up with the default Primary and Secondary revisions and nothing else checked.  My Revision Table settings are shown in the attachment. When I check-in a drawing the revision in the drawing title block updates automatically with the Primary and Secondary revision.  I only want the Primary rev to show.  The revision table does nothing.  I can right-click add revision to the drawing rev table and it adds a new revision A, B, ... Z independent of wPDM.  I need some help!