Cut Chicken Wings Into Three Sections; Discard Wing Tips. In A Bowl, Combine Salad Dressing, Pepper Sauce And Cayenne. Remove 1/2 Cup For Basting; Cover And Refrigerate. Place Remaining Sauce In A Large Resealable Plastic Bag; Add Chicken And Turn To Coat. Cover And Refrigerate Overnight. Discard Marinade. Grill Wings, Covered, Over Medium Heat For 12-16 Minutes, Turning Occasionally. Add Butter To The Reserved Sauce; Brush Over Wings. Grill, Uncovered, 8-10 Minutes Longer Or Until Juices Run Clear, Basting And Turning Several Times.