Diamond Chief OS

The four numbers on a disc tell you the discs’s flight characteristics: speed, glide, turn, and fade.

Lower speed ratings typically translate to a disc being easier to throw, but may not go as far. Higher the speed, further they’ll fly, but they are more difficult to throw.

Glide tells you how much it wants to stay in the air.

Turn indicates how much it wants to turn to the right at high speeds. -4 will turn more than -1.

Fade tells you about the end of the flight. The higher the number, the stronger it will finish to the left.