Trolling for grouper in the wintertime can be extremely productive. Using big-lipped diving plugs is the key in the Gulf of Mexico waters off Steinhatchee, FL. Capt. Cefus McRae spends a chilly winter's day with Capt. Brian Smith fishing for grouper in relatively shallow water. Learn how to set a trolling spread, trolling speeds, and more that will help you put some tasty filets in the boat.