The Fireball is overstable and wind-resistant like the MVP Motion but has an overall straighter and longer flight profile. The Fireball has a longer forward push during its early stage of fade, where the Motion would have begun a long gradual fade. At the end of its flight, the Fireball will drop later and more abruptly than the Motion.
The Fission Fireball is a more glidey version of the Fireball that will push forward slightly longer than you might expect.
Flight Ratings: Speed 9, Glide 4, Turn 0, Fade 3.5
About the plastic: Fission is the same as Neutron with added Microbubble technology to make them lightweight. Neutron is an Opaque blend of premium polymers that offer extremely good durability and hand feel. Largest selection of bright colors. These have a decent amount of flex to them, but are on the stiffer side of something like an Innova Star plastic. Typically this is a plastic that is “true to flight numbers”, but it still depends on run to run.
I'm liking this as a forehand disc