There are infinite variables in the game of golf, but two things remain constant: the putter is the only club we use on every hole, and the grip is the only part we touch when making a swing. Doesn’t it stand to reason that our putter grip may be one of the most important elements in our bag? In this video, Golf Digests' Luke Kerr-Dineen dives in to find out how one of the oldest and most-trusted grip companies, Golf Pride, has found a way to cure a common putting mistake by (literally) turning things upside-down.