Hey Buck,
Depending upon the amount of polish you put on the Delta 1, you can get varying replies from this. I did polish mine a couple of different times varying the amount and they did react slightly different. Generic and truthful answer is the heavier the coat of polish (also depends on which polish), it can go longer or if you just use a lighter amount, it will still read earlier and stronger compared to the Machine.
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Rick Leong - Ten Pins Pro Shop
Track Intl. - Amateur/Pro Shop Staff
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