A4 is a slightly less stable approach disc compared to the previous models in the A series. It maintains its stability but offers more glide, making it ideal for players who want a reliable disc with extra distance in their game.
500 Plastic: With a stiffer feel and less "rubbery" characteristics than the 400 plastic, the 500 plastic is designed to provide a solid and reliable grip. It's ideal for players looking for a stable and grippy disc.