sentences:  After 5-10 layers of glue, some players peel the old glue off to reduce the weight of the sponge, and to reduce the amount of glue needed to obtain the optimum effect.Another disadvantage is that the increased tension on the sponge from the glue will cause the rubber to wear out faster than usual.In order to prolong the life of the rubber, some players remove the rubber from the blade after they play to allow the rubber to contract naturally, rather than remain stressed on the blade.