The Swan 1 wasthe original putter and it would fly straight for anyone right of the shelf. Sincethere was such good feedback,the decisionwas made to produce the Swan 2, with the exact same feel as a Swan with a better flight. The Swan 2 holds the line a little better and can be used in the wind with success. The Swan 1 was designed to give lower arm speeds a straighter putting line, the Swan 2 will give all players that long straight putt they have been looking for on the course.