I am going big out of the gate, 2 pork butts. I need to cook low around 215 for 10 - 12 hours. My question is the wood. I got a bag of hickory chips and I've also got a bunch of Hickories and Oak trees around me with dead branches below. If I use the chips do I soak them overnight or throw in dry ? How ofen would I need to reload chips ? Wouldn't a couple of chunks(branches) of wet old hickory/oak smoke up pretty good ?