Great advice here for ya. It also depends on the smoker that you have. My large smoker uses Wood for fuel, not just flavor. It is a stickburner.I use red oak for my fuel, and different woods in the beginning for different flavors, like apple, cherry, Hickory, crab apple, and mullberry. Once the meats get to 150- 160, I don't add the extra "tasty species" unless I have something else in the cooker that needs it.