Catalyst

MVP Disc Sports says this about the Catalyst:

The Catalyst is a perfect starter for big distance. Its stability profile lends itself to being incredibly useful even when underpowered. Catalyst is significantly less understable (more stable) than its 21.5mm counterpart, the Orbital. High power throwers will be able to control rollers, sky anhyzers, and tight turns, while average to low power players will get easy distance with great glide, and a power responsive amount of turn-to-straight. The Catalyst is molded with the same core and nice even dome as the Octane, yielding extra glide for maximum distance shots.

The 23mm class cores are deeper than typical MVP drivers to afford more glide for distance, and feature a nice dome not typically seen in MVP drivers. From its shape to its weight distribution, the 23mm class is built for distance.