Hey CJ,
Lots of opinions on ribs around here...probably one of most cussed and discussed topics around!
Here's my 2-cents: Use the "no peeky" method and forget the foil!
Methods like the 2-2-1 were designed for stick burners and other "traditional" smokers, where the meat tends to dry out much faster. These smokers are much more efficient, and hold moisture better. Rub your ribs, wrap and rest in the fridge for at least 3-4 hours (overnight's better), put 2 - 2 1/2 oz of wood in the smoke box, put the ribs in @ 225 - 230, close the door and don't look at them again for at least 5 hours. I usually smoke 3 racks of baby backs in my #1 (cut in half, on 3 shelves), and it takes 5.75-6 hours for "fall off the bone" tender. If you foil your ribs in an electric, you'll never get a really good bark.
The other thing I recommend is try not to cook different foods at once that would require you to open the door at any time. If you're lookin,' you ain't cookin'! Keep that door closed. Also, temp probe in ribs really isn't necessary. It's tough to get an accurate reading due to the small about of meat, and closeness of the probe to the bones. Just go off of time and "feel." I good way to test for doneness is to use a wooden toothpick: Insert it between the meat and bone (next to the bone). If it goes in easily, and the meat can gently pull away from the bone (without breaking the toothpick), they're done! If not, smoke another 1/2 hour and try again.
Here's what I mean about the unwrapped bark:
http://smokinitforums.com/index.php?topic=1184.0
You really don't have to work hard at making great ribs in these smokers - that's the part folks have a hard time believing until they try!