I would be extremely pro-active with your application, as someone else mentioned that your OR is not going to pull you along.
I call up weekly to ask what has happened and what is happening next, since being Pro-Rec'd in May.
There has been three occasions now where my signature pages did not send properly, and had I not been calling I would still be waiting for them to realize. Also, I hear that there have been some changes in the way they process security. My OR tells me that they would submit you for FS once your security file was received, just a few months back, however now you need to have the investigation completed and signed off on before being submitted for FS.
I am in the same waiting game, but does anyone know how long the security investigation usually takes to complete?