Series 1...G Series 2...G430 MAX Series 2...G430 Flex...SR (M-40/S-2) Popular Ping 430 MAX. This club has high straightness, and maintains straightness even when the sweet spot is missed. The shaft is Fujikura Speeder NX SR. The shaft is 53 grams. 44 inches. The grip is Elite 360 and is still usable. For those who are interested, I will attach a new grip. Dexterity...Right