The Prodigy Disc X4 is a slightly understable, low profile, high speed distance driver. It is great for players with lower arm speed that are looking to gain more distance. The X4 is designed to hold a turnover even at a lower speed. The X4 performs very well at low heights and in tunnel shots. For players with faster arm speed, the X4 will flip later in the flight path, and is perfect for long wooded shots or accurate turnovers.
The 400 series is a premium blend of material that is extremely durable. The unique blend of plastics feels as good as it looks and will be able to be broken in over time. This tour quality plastic gives the thrower better grip even when it is wet.
The 400G series is the regular 400 plastic with a shot of adrenaline. It is the base 400 plastic mixed with another resin that give the plastic a slightly different feel than the base 400 series. The additive also makes the disc more durable and requires more time to break it in.