September 14, 2011 Titleist adds grooves to new Spin Mill wedges Edit Delete Tags Autopost Titleist finds more by sharpening the grooves of the new Vokey Design SM4 wedges and adding more of them to the face. Source: http://www.golf.com/golf/equipment/article/0,28136,2091095,00.html?cid=feed-equipment-20110831-2091095golf pro school used titleist golf clubs golf club exchange