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Technically the TBS is a little different.Official answer from Butterfly: zero difference. Viscaria, Zhang Jike ALC, Lin Gaoyuan ALC, Matsudaira Kenta ALC, Timo Boll ALC and Timo Boll Spirit all have the same reaction and vibration property. They all have the same head size (157 mm x 150 mm) and the same thickness (5.8 mm) except Lin Gaoyuan ALC (5.7 mm).
https://butterflyonline.com/wp-content/uploads/2014/12/BladeSpecifications.pdf
or
https://butterflyonline.com/Templates/BladeSpecifications.pdf