It's such a small thing I doubt it'd make any measurable difference, would'nt it be better to have a non tarnished(pitted) surface than a tarnish(non pitted) surface performance wise?, I know a non tarnished non pitted one would be better but to what degree?, how much work for how much(little?) gain?...
The amount of water it would 'trap' is tiny no?, and would'nt the added surface area cancell any negatives out?...
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