Warm up smoker to 350F or Gateway Drum Smoker to 300F.
In a large pan, heavily season meat side of chicken thighs with sweet spice rub.
In 15 minutes, flip chicken thighs over and heavily season with sweet spice spice rub.
When smoker is warmed up, place thighs onto grill with skin side up and cook for 15 minutes.
Flip chicken, skin side down onto the grill and cook for 20 minutes.
Increate temperature on smoker up to 400F.
If using Gateway Drum Smoker, drop grill on the Gateway Drum Smoker onto middle rack for more heat coming from the bottom. Place chicken thighs back onto Gateway Drum Smoker with the skin side down.
Let chicken thigh skin render and sizzle about 5-10 minutes until internal temperature of chicken is 180F.
Rest chicken for at least 10 minutes and serve with Pineapple Sauce.