Remove silver skin (membrane) and evenly coat both sides with yellow mustard.Cook spritz on stovetop until warm and blended; do not allow it to burn.Coat ribs heavily with dry rub mixture.Let ribs get to room temperature before putting on recteq for bout 20-30 minutes, bone side down. Cook at 225ºF for 3 hours, spraying once or twice with spritz.Remove from smoker and wrap in foil, and cook for another 2 hours.Remove from foil and continue cooking for another 45-60 minutes.Within the last 30 minutes, brush on a thin layer of glaze.Take off grill and let rest for about 15 minutes.