Hi bigrod, welcome!
Dr. Chicken's Double-Smoked Ham recipe looks more involved than it is. It is simple and absolutely delicious! Essentially, all you are doing is hitting a cooked ham with some heat, smoke and a wonderful glaze.
He also developed an injection, which I have not tried.
Here's a link to both recipes and techniques. The Big Green Egg Users Forum
Below are a couple of pictures of some Double-Smoked Hams I did on my WSM around Easter one year. After cooking them, I removed the bones and sliced them on my deli-slicer. Packaged it up and gave most away to friends and family as Easter gifts.