From 1992 to 1993, Scotty designed putters for Mizuno. Four production models were designed for the U.S. market: the M-100, M-200, M-300, and M-400. The M-100 was introduced at the 1992 PGA merchandise show along with the M-200 model. The M-100 is similar to one of Scotty’s basic and most popular handmade models. Jack Nicklaus used this design in the summer of 1992, most notably at the U.S. Open.