Truth of the matter is poeple have varying preferances for how heavy smoke flavor is. Soaking adds a variable unknown to the mix. Anything desirable that can be accomplished by adding moisture to wood can be accomplished with seasoned wood. The two things I've heard most are additional smoke and extended burn time. More pieces of wood coupled with reduced air will make more,,,,BUT,,,,I prefer less smoke which results in less bitterness and milder smoke flavor. Increasing size of wood slows burn time by exposing less surface area for combustion. lay a stick of wood on charcoal after it's grey and one stick usually lasts as long as charcoal without adding more. Burning sticks I put in a heavy load and open air to quickly ignite all pieces to burn down 50% then set temperature by regulating air. From there on wood is added one piece at a time as needed to maintain glowing coals.