Also for people that done this in a mes before what are some tips thinking of doing two 8lbs pieces. Everything I've read online said to use the water tray and use apple cider or water ??
I like the butt, but never turn down a shoulder if the price is good.
Never have brined mine, trim some excess fat, but leave some on, a coating of cheap yellow mustard and sprinkle on the rub of your choice. Wrap it and refrigerate overnight.
As far as the wood.....that is where the fun comes in. Experiment with different wood, some are stronger than others. My favorite is a mix of Cherry and Hickory, about a 65/35 ratio.