The I-One is a mid range accuracy disc that does the unthinkable – it flies straight and has very little fade. The lighter it is the more glide it has. We have learned that at 165g the disc has the maximum speed to glide ratio. At 150g the disc has the most glide. As it gets heavier the glide is reduced allowing for the disc to stay closer to its destination vs gliding on past the basket. It is up to your style of throwing whether you want max glide or minimum glide. Maybe some of you want both?