I filed for a second background check, just in case they (Buffalo) need it.
The funny thing is, I mailed it out January 6th, and then I got a call from the FBI office on January 10th. They'd received and opened my background check request!
They called me because I mailed the background request from my office (using an office envelope), as I didn't feel like going to the post office. They were confused as to why it had my office address on the envelope. I explained that I had sent it from there, but that it was for Citizenship & Immigration Canada, not for employment purposes.
The lady was very friendly, and said "Okay! No problem, we'll begin processing this."
*shrug*
I put on the application "PLEASE RUSH - THANK YOU!!". I doubt it'll help, but it's reassuring that they actually opened my envelope, rather than it sitting in a mail room somewhere.
I also included a FedEx prepaid label. The first time around, I sent it regular mail, and it was sent back to me in about 8 weeks. I'm hoping the FedEx speeds it up a little.