Well, I am pretty new here and still trying to catch up on all the various discussions, but I must admit, this is by far the most interesting thread so far. Lots of ways of saying basically the same thing.
So I guess I will add my 2cents worth. While the 3-2-1 method is a good basice guide, it IS just a guide. That being said, I have found it to be a very accurate way to cook ribs at home. There are a few things to remember when using 3-2-1 though...it is designed to be used when cooking 220-240. And consistent cooking temperature is critical as always when smoking meat. After 3 hours cooking naked, I lay mine in foil and use a spray bottle to lightly spritz the ribs, then seal them i foil and leave them alone for 2 hours. At that point I open the foil and finish them for approximately 1 hour. I baste with my sauce about 20 minutes before removing from heat. Note that if you just open the foil and do not try to lift the ribs, they do not fall apart. This allows them to firm up the last hour while keeping the meat tender and juicy. May not work for others, but it works for me.
You may wanna check out the backs at sams. they are usually a bit cheaper than wally world. comes 3 racks to a pack and good quality.
if you're lookin you ain't cookin.
I hope this helps more than it muddle <g>