My smoke on the 4th was a successful one, but the smoke was getting troubled all day long. I have the Jack Danies Hickory chips and wrap them in foil with a couple very smal holes on both side of foil. That worked great the first two times but this time it seemed the wood was billowing out of the foil and turning white so I removed the wood. I threw some chips on now and again throughout the smoke. However, I am wondering why this time the chips were really smoking heavily producing thick white smoke. Maybe the coals were too hot? Too many holes in the foil? Do you just poke some holes in the top of the foil or both sides? With chunks, do you have to soak before mixing with the charcoal or just put them in dry?