Step 10:

Once the smoking begins, put the stuffed breasts on the pizza stone, insert a probe thermometer into the thickest part of the largest breast, and close the lid. Reduce heat to ~250 F.
  
 
 Step 11:

When the internal temperature of the meat approaches 130 degrees, crank up the heat to between 300 and 350. Cook to 175-180 degrees Fahrenheit internal temp, then open the lid and remove.