A pro shop should have proper equipment at hand for an oil extraction and/or a surface refreshment. If the ball actually needs a treatment depends on its reaction on the lane. Very strong modern coverstocks suck up lane conditioner like a sponge and eventually die, so that oil extraction only gets you back to normal for a short period or even not at all.
After 100 games it is IMHO not a bad idea to have a ball refreshed, and a resurfacing would be a logical additional step.
DizzyFugu - Reporting from Germany
2010/11 Benrather BC Club Champion
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