The Prodigy Disc M5 is the least stable of the Prodigy M-Series discs to date. This is a great all around disc for highly skilled players, and for people just learning the game. This disc will flip up when thrown hard and turn right.
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.