I was told by a new girl I play table tennis with that she hates playing aginst people with pimpled rubber. This was not the first time I've heard that same remark. I ask her why, and she said all they do is block, they do not have to put any effort in trying to score, while you are movig around the table, slamming, looping, chooping...I agree with her but I don't hate playing with them, because after a while you will eventually beat them because they only have one thing to rely on and thats blocking.