. . "When the intermediate layer (such as inner cover layer) is at least harder than the cover layer (such as outer cover layer), or intended to be the hardest portion in the ball, e.g., about 50???75 Shore D, the cover layer may have a material hardness of about 20 Shore D or greater, such as about 25 Shore D or greater, or about 30 Shore D or greater, or the cover hardness as measured on the ball can" . . .