Must be in the way you're "rubbing that conditioner in".
Seriously (didn't think I could do that, did you?), the times I've scraped my wheel have usually been around the same area., repeating the same action. It may be a re-scrape. i know it the moment I do it, usually followed by a colorful word or two. I don't wear rings, my watch band is teh smoov, and I fit into the seat without contacting the wheel like a FF.
I've noticed that mine usually blend back in for the most part after a while. And I keep my nails trimmed better - it's the Metro Way.
siggy starts now:
Learning to love The Obamunist Way

Republicans believe every day is the Fourth of July, but the democrats believe every day is April 15th. - Ronald Reagan
The two enemies of the people are criminals and government, so let us tie down the second with the chains of the Constitution so that second will not become the legalized version of the first. -- Thomas Jefferson.
Democracy is two wolves and a lamb deciding on lunch.
Liberty is a well-armed lamb disputing the vote. - Benjamin Franklin
04 S4AvantTip
Still Stockin'
Soon to go Buh-Byeeee