The Viper is very stable to overstable disc that is very reliable in all wind conditions. The Viper changed the way disc golf is played by becoming the first disc used for the “Flex Shot”. Excellent choice for sidearm throwers. Recommended for experienced players. Factory Seconds give you the opportunity to purchase blemished discs at a discounted price. Factory Seconds are cosmetically flawed discs that did not meet our quality standards for regular production. The flaws do not affect flight characteristics or durability of the disc. The flaws can be one or more of the following: misprinted stamp, bubbles in the rim, or specks in the material. Factory Second orders are subject to availability.