Set your Traeger or pellet grill to 400F
Wash the potatoes well. Use a fork to poke holes a couple times in each potato. Rub the outside of each potato with a small amount of vegetable oil and season with Traeger Rub.
Once the Traeger has preheated with the lid closed for 15 minutes, place the potatoes directly on the grill grates for 1 hour or until they reach an internal temperature of 180F.
While the potatoes cook, prepare the bacon and shred the cheese.
After the potatoes have cooked for an hour, check to see if they are fork tender. Depending on the size of the potato, they may need more time.
Remove the potatoes to a baking sheet or cutting board. Give the, a few minutes to cool off before handling.
Cut off the top ⅓ of the potato and scoop the white potato flesh into the bowl of your stand mixer or large mixing bowl. Leave a ¼ inch around the edge of the potato peel so it doesn't fall apart.
Add the butter, sour cream, shredded cheese and bacon bits to the potato and mix to combine. Taste the potato filling and season with salt and pepper as desired.
Fill each potato shell with the filling and top with extra shredded cheese.
Return the potatoes to the smoker and cook for 15-20 minutes or until the cheese has melted on top.
Remove from the smoker and serve with sour cream and diced chives if desired.