With my kinetic emerald, I had to have it deoiled probably 3 times in 6 months. Two leagues per week, and it wasn't the only ball I threw, just the one I threw the most. I wiped off the ball before I threw every shot with a leather shammy, and cleaned it after almost every set. Based on that, and from what I have read in the last two posts, I would have to agree that wiping off the ball doesn't do that much good, except as being part of a pre shot routine and to help keep from getting lane oil on your hands