It wasn't the zone part of the equation that eluded Radford, but the defense.Duke shredded the Highlanders' ill-advised zone with 18 3-pointers in a 104-67 romp in Saturday's untelevised game at Cameron Indoor Stadium.Freshman Andre Dawkins (20 points) hit his first five 3s, and six of seven, and Nolan Smith added 20 points for the hot-shooting Devils, who made 18-of-32 from beyond the arc.Radford switched to a man in the second half but it was equally ineffective.