Diamond is the choice of disc for beginners, children, and people who don't throw very far. It is produced primarily in lighter weights which makes it easy to throw and control. It has an understable flight path with good glide and small fade.Flight Ratings: Speed: 8 Glide: 6 Turn: -3 Fade: 1About the plastic: Gold Line is our premium blend plastic. The start of the mix has been the same brand plastics used in Opto Line but we added a different polymer to give it better grip without losing the excellent durability of Opto Line.