Yes, ducting is an unfortunate fact of life in South Carolina, usually during the summer, but i have found it can happen any time of the year here if the weather is right. I would guess Columbia, with all of its class A FMs would be especially affected. I'd also expect that 92.1 from MYB would be a frequent visitor in NE Richland County, so I wouldn't get too attached to WWNQ. BTW, I've noticed that many of the Charlotte class Cs have been breaking up quite a bit here in the Fort Mill area, 17 miles from uptown Charlotte, for the past week or two---I'm sure ducting is the culprit.