I'm planning to slow cook and smoke a tri-tip on my gas BBQ. I was thinking about using indirect heat at about 250. I have a pellet smoker than I can set on the grill to create smoke. Does this sound like a good way to smoke the Tri-tip. Also if I use indirect heat should I place a tin foil pan under the meat? I'm thinking about cooking it to about 135 degrees. It is about 3 pounds so I don't know how long that will take.
I went to my local store and all they had was McCormick Grill Mates Barbecue seasoning and Pappy's Prime Rib Rub. Would either of these work as a rub for the tri-tip.