Powerful Catapult-Based Aggressive Topspin Strongly transferring vertical and horizontal energy transmitted during hitting at the same time requires very high technology physically from the user #39;s point of view. However, the #34;X #34; rubber, which applies the catapult effect of the #34;SLING #34; principle, holds the ball deep into the rubber surface and effectively delivers two energies at a time lag. Available in Red, Black, Available only in Max thickness. Speed: 8.4 Spin: 9.1 Control: 8.9 About Xiom #39;s New Jekyll amp; Hyde Rubbers The important performance criteria, speed and control, speed and spin per distance, have conflicting characteristics just like #34;Jekyll amp; Hyde #34; of processing. It is known it is practically impossible for each criterion to show higher integration performance than a certain level at the same time. Jekyll amp; Hyde has reached the highest value at the same time, focusing on deep learning and cycloids, the best rubber development technology. Like frozen ice and blazing fire, we made various elements inside the rubber that were powerful but couldn #39;t be with each other the best value at the same time. New research efforts for the future have led to unexpected and surprising results and have confidently introduced Jekyll amp; Hyde.