Season beef and place steak directly on the grill grates in a preheated smoker.
Smoke at 200F for about 60 to 75 minutes or until the internal temperature reaches 120F. If you aren't going to reverse sear, continue to smoke the steak until the internal temperature reaches 130F. Let it rest for 5 minutes before slicing.
Then to reverse sear, remove the steak from the smoker when the internal temperature reaches 120F. Then over direct high heat, whether on a grill or in a cast iron pan, sear both sides of the steak. It only takes 60 to 75 seconds per side. Let it rest for 5 minutes then slice and serve.