i dont know about the k e but i do have a cell .As far as it needing oil ,maybe its me ,but i have seen just the opposite. the last surface i tried was 400 grit and today i was shooting on a pretty broken down shot with dry outside 10 and thats where i had to get the ball for it to come back. if i kept it in the oil it wouldnt finish and it reacted off the dry unlike any medium heavy ball i have ever thrown. It was a very nice reaction ,but i was also throwing a polished nvs and the nvs was running through the nose. for me the jury is still out on whether or not the cell is for medium heavy or medium to light.
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my style, the art of bowling without bowling