Hey all: I have a party coming up this weekend and I want to add a little variety. I've been having success with baby backs using the 2-2-1 method. They have been tasty and falling off the bone. For this weekend I think I'd like to make them with a little chew left on them, so i'm going to leave the foil off and just smoke them straight thru unwrapped. Should I expect them to take a little longer being as they aren't being steamed in the foil? I know I'm looking for the meat pulling back from the end of the bone. I'm not looking for a definitive answer, just a rough idea. I'll probably be cooking about 5 racks of ribs. Do you think it;s advisable to rotate them to different racks? Thanks.