The Infinite Discs Ra is a moderately overstable midrange with a very flat top and comfortable, beaded rim. It feels and flies perfectly for both backhand and forehand players. It is difficult to find a midrange that is so easy to control and so precise under multiple course conditions.
Luster C-Blend is the same durability and make up as C-Blend Plastic (comparable to Innova Champion), but the Luster plastic has a shimmer to it. This makes the plastic not only durable and long-lasting, but also adds more cosmetic appeal with the extra glimmer. Some players feel like Luster adds just a touch more stability to the disc, and is more firm than the traditional C-Blend.