Periodically, between beers or glasses of wine, sprinkle with additional wood chips.
The barrel will stay between 350 and 400.
In two hours check with your Digital Meat Thermometer. It should be 160 deg in the thickest part of the breast (will get to 165 deg as it rests before you slice).
Remove from grill on Mac Cutting Board and let sit for 10 – 30 min depending on hunger level (I see most recipes say to wait 30 min to ensure the internal temp gets to 165 deg but I sliced at 10 min and it was AWESOME).