Welcome Fishnerd! Congrats on the new smoker. Feel free to add to your signature on your profile just a little info. Maybe first name, location, equipment, etc.. totally voluntary, so add as you wish.
You have already taken 2 great first steps. First you bought the SI. Second, you are reading the forum to take advantage of he experience of thousands of smokes on these smokers. Let us know how the ribs turned out.
BTW, you are about to make more friends, especially neighbors!