i have personal experience of these bats, used them, as well as being used in tape ball by many others because i play professional tape ball.... yes, these bats have better ball response than the normal wooden bats and they are lighter in weight as well....thus they are not hollow or any thing like that, these were the positive points, the negative ones are that they are banned in most of the tournaments and some worthy matches as well, i mean no professional would allow one to play with it against him.....2nd negative point of these bats is that the ball response is better than the wooden bats but the magical taste in the hand of ball collision with the bat is far far less than the usual bats!