Trim the membrane from your ribs if your butcher has not already done so.
Use a small bowl to combine the mustard, 1/4 cup apple juice and the Worcestershire sauce.
Apply this mixture over the tops and bottoms of the ribs, then season with your rub.
Preheat the grill to 180℉ when you are ready to cook and leave the lid shut for a quarter-hour.
Smoke the ribs, with their meaty side facing upward, for 3 hours.
Transfer them to a rimmed baking sheet and raise the temperature to 225℉.
Grab four long sheets of durable aluminum foil.
Spread a rack of ribs over them and then pull up the sides of the foil so that all liquids remain trapped.
Apply half of the brown sugar on the rack of ribs, then top it with half of the honey and the other 1/4 cup of apple juice.
Add a bit more juice if you want to increase the tenderness of your ribs.
Add another sheath of foil to the top and crimp the edges to ensure there will be no leaks.
Repeat this and the previous step with the other rack.
Return the foil-covered ribs to the grill for 2 hours of cooking.
Cautiously extricate the foil from the meat and brush both sides of each rack with BBQ sauce. Trash the foil.
Space the ribs directly over the grill grate and continue grilling until the sauce tightens up; no more than 1 hour, no less than 30 minutes.
Allow the ribs to rest several minutes prior to serving.