If the flash copper is coming out of the tank bright and shiny, then there's little need to polish it. If it's coming out dull and flat, and you want your final Copy Chromed piece looking bright and shiny, then yes, you'll need to polish the copper. Copper is very soft, so you don't need a real aggressive polishing technique to bring the shine up.
I thought we had resolved the flash copper issue by adding another anode to your tank?
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