I seem to recall that when WGST changed from 920 to 640, the reasoning given at the time was it was a much better signal and would put them on a better footing for battling the 800 pound toothless gorilla that is WSB. What happeend to that supposed better signal? During the day, WGKA puts a better signal in Duluth when I lived there and in Gainesville where I now live?