Try Track's own Clean & Dull. Remember Clean & Smooth is primarily a liquid sandpaper, not primarily a cleaner, although there is some cleaner in it. Clean & Dull is ONLY a deep cleaner. I'd suggest using Clean & Dull once a month or so, unless you're bowling on very heavy oil constantly. Then, once a week may be called for.
Any number of "plain" bowling-specific cleaners or household degreasers can be used for daily cleaning. I've kind of been leaning towards Storm's Proacta Clean as a daily or after bowling cleaner, while using a Micro-fiber type of towel while bowling.
Some people like Neo-Tac's Hook-It for deep cleaning. While I have it, I hesitate to use it without industrial strength rubber gloves. The stuff seems like toxic waste dump material and you cannot use it on polyester balls, as it virtually dissolves them. I've seen what it does to urethane and I'll never do that again either.
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