Wilson Burn 100 is a high power and performance driven racket, with parallel drilling and forgiving feel and control. Spin effect technology is the first racket system that actually increases ball rpm without players changing their swing. New to this model is Countervail technology, which will enhance the already impressive dampening provided by the braided Basalt/Graphite layup. The overall result, is increased arm-protection and less muscle fatigue. The Parallel Drilling technology, is better able to absorb vibration and transfer extra energy to the ball. All in all this is a great stick for intermediate to advanced players who are looking to generate more spin from their shots. Please be aware that you may encounter lower string life due to the extreme string pattern.