400G Plastic is the regular 400 Plastic with a shot of adrenaline. It is the base 400 plastic mixed with another resin that gives the plastic a slightly different feel than the base 400 Plastic. The additive also makes the disc more durable and requires more time to break it in.
The Prodigy Disc D2 is a very fast, overstable driver that is designed for strong throwers. Just slightly less stable than the D1, this driver is good in all conditions and flies just as well into the wind as it does with the wind. It is an extremely reliable driver with the least amount of side-to-side movement of any driver on the market. It is equally as long, twice as forgiving and has a much gentler finish.