Recent content by Yu Po Sang

  1. Butterfly Racket 801

    Just open and try butterfly racket 801 and compared to my Stiga vortex tube 4 stars racket .... I original am expecting if a ball is dropped freely on the racket 801, the ball will re-bounce higher than Vortex . But, after test, it is the other way round. Why?

  2. Butterfly Racket 801

    Just open and try butterfly racket 801 and compared to my Stiga vortex tube 4 stars racket .... I original am expecting if a ball is dropped freely on the racket 801, the ball will re-bounce higher than Vortex . But, after test, it is the other way round. Why?
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Fan Zhendong Series
STIGA Cybershape
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