It is in the same position as ZF2 on the chart.
http://www.yonex.co.jp/badminton/pdf/bad_racquets_selector.pdf
Anyway, "Astrox 100 ZZ" is a bad name. I thought it must be "Astrox Z-something".
http://www.yonex.co.jp/badminton/pdf/bad_racquets_selector.pdf
Anyway, "Astrox 100 ZZ" is a bad name. I thought it must be "Astrox Z-something".