Remove the membrane by sliding a dull knife under membrane on the underside of ribs and pulling off while holding membrane with paper towel for easy grip.
Season both sides of the ribs liberally with dry rub and pre-heat smoker to 225°F
Place ribs meat side up on smoker grates or rib rack and smoke for 5-7 hours. If wanting BBQ sauce, mop on sauce at the 5 hour mark and thereafter every 30 minutes.
Test ribs by picking up one end of the rack allowing the ribs to bend. If the meat cracks and starts to separate, they are finished.
Allow to rest for 15 minutes and cut in between each rib bone for individual rib pieces.
Notes
The bend test accompanied with the bones becoming more visible (meat contracting on bone) is the best way to tell if the ribs are finished
If all of your ribs are fall off the bone, they are over done. They will still be tasty, but overdone
Cooking a lot of ribs? Use a rib rack to stand ribs on end giving you more space on the smoker