The best way to lower your score is through putting and the best putter is the Innova Aviar. Factory Second discs are discounted because they have minor blemishes and/or multiple stamps. They perform the same as stock discs.
More on F2's:
A Factory Second disc has cosmetic imperfections which do not affect flight or durability. These discs may contain bubbles or flecks in the plastic, other cosmetic imperfections, and/or multiple stamps. Stamp size, design, color, placement, and number of stamps on each factory second disc may vary widely.
Color preferences will only be fulfilled when available on a first come, first served basis.