The Wilson Juice 100S is an all new specification for 2014, offering a versatile, very spin friendly 16x15 open pattern that appeals to a wide array of players. Spin Effect Technology permits additional string movement, increasing the RPM of every shot! 26/25mm tapered design, spin oriented 16x15 string pattern, 11.3 oz. strung weight, and 100 square inch head for forgiveness. New Amplifeel 360 handle system technology for enhanced racquet feel to go along with increased power and reduced weight. Continued use of Basalt fiber (BLX) technology for improved frame feedback, continuing to feature classic feel in the same tradition as the previous-generation BLX models. New Parallel Drilling provides a consistent, more forgiving string bed response while dramatically increasing the sweet spot. Ideal for the intermediate to advanced player who prefers a nice blend of pop but with the added spin and control from this new string pattern.
I wanted a large head size with some power and I have always trusted Wilson to provide my rackets. I like the spin effect string pattern for engineering the extra spin.
from TN wrote (June 22, 2014):
I played with the racket for the first time in competition without even working out with it. It was amazing. I have not hit with a racket in years that had such a good combination of both power and feel.