Eyeluvcoins,
I have not run into a box of only newer pennies yet and I've gotten a bunch of boxes, but I hear they will be around when the 2012's come out in a month or two. My brinks boxes have about 25% to 30% copper and I get a lot more wheats in them than I do in CWR's. I get both boxes and CWR's and the boxes tend to be more consistant. CWR's can be real hit or miss. I have had 4 rolls of pure copper, but have also run into what must have been someone elses dump with no copper.