Prodigy Discs says this about the A4: The all new A4 is the latest in our range of approach discs. The A4 is a slightly over stable disc that fills the distance gap between midranges and putters and is designed for all skill levels. The disc is consistent and reliable in moderate wind conditions and perfect for short approach shots. It works equally as well for backhand or sidearm throwers. The A4, like the A3 has a bead on the rim. You can expect it to fly slightly less stable than the A3 with an extra 40-50 feet in distance.
About 400G Series Plastic
The 400 G is our 400 series plastic that has been blended with another very high-end resin. It is a premium and extremely durable blend of materials. If you love the feel of the 400 series you will really love the 400G.