Just an observation. I have followed this forum once every few days in the past couple of weeks. Lately, this forum has turned from informative to borderline paranoid, especially all the speculation going on around courier times, order of deliveries, guessing what CIC does behind the scenes, coming up with alternative theories, suggestions of opening courier companies, guessing the size of cages, etc. Seems like people are splitting hair on this forum. The over-anxious ones need to channel their paranoia and go practice some yoga for a couple of weeks and start checking their credit card statements then to see if the immigration gods have decided to favor them. Everyone here knows better than anyone that in any immigration system in the world with factors of 10 chasing a limited number of spots, you are playing the odds when you decide to submit your application. You either get picked or you don't. I also believe, that in any given year, CIC will be doing calibrations behind the scene adapting to the changing techniques used by applicants in the given year. Its all a zero sum game in the end to which all of the over-speculation adds no value. The CIC doesn't owe it to tell you about their background processing techniques, that's just not what them or you signed up for.
Relax and just know that your odds here are a million times better than the hopes we all put in to buying 649 tickets every week!