I know exactly the specs you are referring to... here are some views through the polished side of my ~116k mile Boxster windshield, where they are clearly visible. First photo is an overall view looking into bright, glaring sunlight, and second is a zoomed-in view looking into an overhead light in an underground parking garage:
That said, it looks better than before polishing. Below, notice those same two scenes viewed through the unpolished side of my Boxster's windshield...
These wiper blade scratch marks make really annoying, moving rows of glaring parallel-line reflections which constantly change orientation as the bright moving lights outside the car (especially worse at night) move around. The worst spot in the windshield for me is the area where both of the wipers overlap, as there are glaring lines there at not just one, but two unique angles!
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