Put dry-rubbed tri-tip on a plate and in the fridge while you prepare your smoker.
Get Your Smoker to 180-225F
Once at temperature put on your smoker and add your favorite wood.
I used post oak and added new wood chunks every 45-60 minutes.
Take Tri-tip Off Smoker 10F UNDER Your Target Temperature
My goal was 135F so I took the tri-tip off at 125F.
Either get your smoker to 400F-500F OR sear in a cast iron skillet over medium-high heat OR do like I did and light 1/2 chimney of charcoal and put grill grates on top.The goal is just to get some char on the outside.
With my setup I seared for 1 minute on each side.
Rest the Tri-tip for 10 minutes
Rest on the counter on a plate, uncovered. Don't tent with aluminum foil.
Slice the Tri-tip Correctly
Tri-tip has two grain directions that need to be sliced against the grain to be made tender.Use my photos above to see how to slice it correctly.