any anodizing and paint will get machined away by the brake pads anyways.
it won't wear evenly all around so you might as well get machined rims which have a nice, even finish all around.
I tend to agree with this quote but I haven't used the OP CDs just the "standard" Op.
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“Life is not one damned thing after another. Life is one damned thing over and over.”
Edna St. Vincent Millay