Redheart...brother.... you are waaay over thining this. RELAX and enjoy good BBQ. Facts are only a starting point but if you think you can put all these facts together and make a cook work....won't happen. A brisket of the same brand and size may take 8 hours or 15 hours. It is done when it is done, period! All of your questions are ligitimate but it all boils down to trial and error based on what you are cooking on. Try your theories and techniques and keep us posted. JUST COOK SOMETHING and take notes. Not too many notes though!
my avatar swiped fatties from the plate....look how sorry he is.
NB Bandera with mods
Weber 22 .5" x 2, 26.75" x 1
UDS x 3
Created "The Great Spam Revelation of 2011."