I am in the same boat, even though i turned myself around,
sent mine in April 11 they received it 3 days later as i was notified, Augs 2 in cfo officer hands for the finally stage background checks and so forth, but due to my color and how i look i know they are 
looking over my file with a fine comb lol 
I know that they are looking into mine deeply as i had a bad past as a teenager and at 17, did a year 
back in 95, was clean till 97 verbal threats accusation but the charges were dropped and in 2014 had a crazy nut case ex falsely accused me of having a firearm and drugs, 
charges were dropped due to false claims and the gun was a bbgun of hers she planted, had to go to court 3 times to tell the judge it was all bull####, what saved me was a picture she sent to of her licking the barrel to me and the fact she never showed up to court 
3 times, dam i was getting tattooed at that time, man MTL police do not play, swat was at my house, i was thankful my dog was safe at that time, the cops where to much into her and how she looked they did not see the coke on her upper lip, 
so who knows for myself, my reference is my ex and my grantor who is my best friend they called her like 3 times and sent a letter, what might help me is that my record suspension letter should help as i have hired a lawyer to delete my record,  
but yea how you look and your past really comes back to haunt you...