"Yonex recommends that crosses be strung at a tension 10% higher than the mains. However, it is recommended that the final 5 crosses be strung at the same tension as the mains. Yonex recommends this method as it helps the racquet maintain its original shape after stringing" The Yonex Recommended Stringing Method by Long Nguyen The, on Flickr Nguồn: (xem trang 32) https://drive.google.com/file/d/1wa4qMt1D9lKgVLLbblic8cwKtka3x0tN/view?usp=sharing