The Kotuku is a good, overstable to straight disc with a reliable fade at the end. This disc will easily hold a line and has a surprisingly long glide. 

Speed: 5 | Glide: 5 | Turn: 0 | Fade: 2

The Strata plastic is their performance plastic which is opaque, tacky, and medium to stiff. It comes in a variety of colors. This plastic is great for when your discs get wet, and it breaks in nicely, especially for those favorite putt and approach discs that you want to gently rock over. This plastic is similar to Innova DX with a nice, chalky feel.