This has always been a problem for me with Pandora. I recently started a station for the reggae band Stick Figure. I've had a Jimmy Buffett station for a while now, and it's been fine until today, when it started picking up several reggae songs. While I suppose there's an "island" theme to both Buffett songs and reggae songs, the fact that the Buffett station didn't play any reggae prior to my creating (and "up thumbing") the Stick Figure station, makes it hard to believe there's no "bleed." And now I have to start down thumbing all the reggae on the Buffet station. Meanwhile, the Stick Figure station has recently started playing music from various other stations I have that I don't want on my SF station. The purpose of my creating a new station is to get new music, not to hear music I already have on other stations. ... View more