On court racket review of the Yonex Astrox 100 badminton racket, comparing theZZand ZX rackets. These rackets use the lastes revolutionary technology to be the thinnest shaft design produced by Yonex, the ZZ with a Hyper Slim shaft and the ZX with the Extra Slim shaft to make these rackets cut through the air. The Astrox 100 ZZ has a solid core giving it more resilience and increases the performance snapback.