Thanks for the review , my new rubber is a 888 OX , the control is harder without a sponge ( as suggested by you ) , the ball just like hitting straight on the surface of the blade , so the match of this rubber must be a trial and error , like the one I am using now is a Dr.Neubauer Bull Dog which is good for long pimple rubber OX with good control and attacking power , this is my powerful weapon at the moment , the back hand side spin attack is the main killer particularly for incoming down spin ball which cause opponents hardly to resist.