If you were Neil Cragg and turned up for a race meeting with white ball cups, that had been used and gotten dirty, would you look KOOL even if you won the day? The point being made was... Rpm ball cups are a great investment to people who have old worn cups that need replacing, they are probably better than the kit supplied ball cups. White rpm ball cups will get dirty when used on an off road buggy that goes off road.! I think someone was just commenting that white is not the best choice of colours for a buggy!.