I've researched around the web a bit on this issue, because I have some cuppage as well. From what I've read, they won't "fix themselves." After a few thousand miles of sounding (and looking) like a 4x4, I'd tend to agree.
Resurfacing sounds like an option, let me know if you find anything on that. I'm thinking about flipping mine back around to see if they're a little less noisy that way.
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