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Probably any preboosted Chinese rubber like Battle II or Dianchi.Thank you. What rubber would be an alternative, and what thickness and hardness?
Noticed a lot of equipment changes during the contender Skopje.
Hitomi Sato: Dignics 09c -> ZYRE. Yang Wang is also using Zyre so it isn't unprecedented.
Sakura Yokoi using Viscaria Super ALC. Also appears she is using Zyre on her backhand.
Satoshi Aida is using Shining Dragon II on his backhand now.
Kihara: Speedy Soft D.Tecs -> Speedy Soft XD. I noticed Kihara was using a vertically aligned shortpip at the ATTC trials held in Japan recently and the sponge color was slightly different. Can clearly see the pips are vertically aligned here.