My file signed on Nov., 17th. When other 5125 whose package signed later than mine received Per, I was freaking worried, just like some of other friends feel here.
I did finally receive my per on Feb, 11th. Yesterday I checked the online status with my UCI, it shows by CIC that "we received your application on Nov 19th.. It explians a lot why i received per much later than I anticipated. I asked around, theirs were the same as their UPS signed. So I guess CIC count the date by the time they open our files, sometimes when they got busy, probably they won' t open it immediately at the time your package signed.
I know it has been an extremely anxious process during the waiting period, and sometimes even one or two business days do count that matter..
Hope it makes you guys feel better..