My pearl Urethane doubles as my dry lane ball, so yes, I clean it just the same as I do my other equip. It only takes 10 seconds, and the cleaner and rag are already out, so it's not really any hassle. Not to mention, the less oil on the ball, the less chance you get some on your bowling hand and into the finger holes!
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Why, WHY won't the last one just fall?? It's WIGGLING for cryin' out loud!!