Todd I'm sure that shine would pass 99.9% of the time. But i know you are a perfectionist.
I have being doing a little metal polishing lately and it is a different animal. Instead of soft or hard clear there is metal alloy composition to take into account.
I think one must start looking into dedicated products.
Also in this link it mentions heat buildup (at the bottom) as the last step to removing the haze.
Frequently Asked Questions - Southwest Metal Finishing Supply
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