The author says that Wilson's new racquet with Spin Effect technology doubled the spin on his shots compared to his normal racquet. Now that sounds mind-bending

The author says that Wilson's new racquet with Spin Effect technology doubled the spin on his shots compared to his normal racquet. Now that sounds mind-bending! Especially when Wilson's site claims that technology provides the benefit of 10% more spin - http://www.wilson.com/en-us/tennis/spin-effect/innovation/ http://www.wilson.com/en-us/tennis/spin-effect/innovation/