Mike, thanks for the 3-2-1 tip. I did a 3-2-0.5 and it was absolutely fantastic fall off the bones rib eating. By the time it was out of the foil, it was falling apart. I might do something like a 2-2-1 with the baby back ribs. The temperature in the WSM started falling a bit after 4.75 hours and I had to put in some more charcoal (unlit Kingsford - no lighter fluid of course... hope the chemicals don't kill me too soon ). I used Kingford briquets this time because it was my first time but I might try natural lump charcoal next time (or maybe a mix).