The spiral hams being pre-cooked and pre-smoked are a little bit different than smoking raw meat. The ham you have likely has a tag on it that says to warm it at 275 degrees for 15 minutes per pound. So, this is pretty much how you could smoke it if your #2 could reach the 275. Since it probably can't, go with the 250 for a little longer period of time or until an IT of around 145. As far as smoke, cut back on the wood as you will only want to supplement the smoke that is already in the ham. I like to add a ham glaze and some pineapple rings close to the end of the cook time. I make my own glaze with some brown sugar, a little clove spice and some of the juice I've poured off the pineapple rings. Some maple syrup in there isn't bad either.