Like an earlier poster said, just cook it to desired doneness by monitering internal temp. It's already tender. My 22 likes to hum along at 275 deg and I get a nice exterior w/o any additional searing, etc. Typically just salt, pepper,a single piece of pecan smoke wood and Kingsford.
I recently bought two whole boneless at Costco for our annual Carnivore Party (over 16 lbs each). Cut each into three 5 to 6 lb'ers. Cooked four on my 22 and two on a friend's 18. Put them on at different times so I had a variety of "doneness" available at dinner time.
They really are hard to screw up unless you over or under cook to your desired doneness.
Randy