Never Compromise Sub30 Mallet Putter The Never Compromise Sub30 Mallet Putter is engineered with technology for peak putting performance. Numbers are everywhere in golf, from score and handicap to par and yardage. A successful day on the green is having less than 30 putts, a goal that inspired the Never Compromise Sub30 line. Made from stainless steel, the Sub30 is available in four sleek, classic models that are each pleasing to the eye. Besides the cool artwork on the sole of each putter, players can choose from one of six stylish headcovers.