Discraft Challenger OS tour series whereas standard D-Line focuses on

whereas standard D-Line focuses on solid colors and multiple flex options

If you used to throw a Wombat3 or an MVP Uplink and want to transition to a Discraft bag

Designed for intermediate to advanced players

Designed as an ultra-overstable midrange

For experienced players with more power

Discraft Challenger OS tour series whereas standard D-Line focuses onDiscraft Challenger OS Flight Numbers: 2, 3, 0, 3 The Challenger OS is a more overstable, flat topped version of the popular Challenger. This putter works best for driving, throwing into headwinds, weaving forehand approaches, and tossing hyzer putts. It is overstable enough to meet a majority of a player's needs without becoming a meat hook.