Ask the Expert Click here to submit a question to one of our Killerspin experts. Question Posted I recently purchased the rubber cleaning foam and sponge. Should the sponge be dampened with water before wiping the cleaner off of the rubber, or should the sponge be dry? Should I clean the sponge after each use? Wednesday, 16 April 2008 Can you give me some tips to improve my footwork...especially when I turn from my backhand to take the forehand? I don't make good contact and tend to hit the ball too late. Please help!! Tuesday, 01 April 2008