Double Fish Volant-Phoenix

Chinese table tennis rubber that has a slightly sticky surface and a hard feel. The sponge of the rubber has been factory-boosted to a 39-degree hardness, which means it has a relatively high level of firmness. However, you suggest that adding another layer of booster could further enhance the performance of the rubber. Booster is a substance that can be applied to table tennis rubbers to increase their speed and spin. It is important to note that some boosters are not allowed in competition play, so it's essential to check the rules before using them. Additionally, adding too much booster can cause the rubber to become too bouncy and uncontrollable. Overall, adding another layer of booster to this Chinese rubber could potentially enhance its performance, but it's important to consider the potential drawbacks and the rules of competition play before doing so.