Don't know if this helps or not, but I have a Diesel reactive pearl for a little over a year and haven't had any problems with dimples or any other surface irregularities other than normal wear-and tear. Have you subjected it to an temperature extremes? The balls today are much more sensitive to that sort of thing than the rocks we used to chuck at the pins 25 years ago. For that matter, today's equipment isn't built to last as long either.
Of course, you could be completely correct, you may have just caught a ball with a defective cover.
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