PA2 is a Putt and Approach disc. This Putt and Approach disc is designed to be stable to over stable in all wind conditions. The consistent flight path of this disc makes it extremely reliable in all wind conditions.
Factory Seconds or X-Outs are discs that may have slight cosmetic flaws from the factory. These minor flaws do not affect the flight of the disc. These flaws may include stamp drop outs, mis-stamps, etc.
Some X-Outs may vary slightly from picture if they contain "variant" in description. These generally have the same color pattern and stamp combinations with subtle variances.