Raven Sky Sports claims to operate out of the Twin Oaks Airport in Whitewater, Wisconsin. I attempted to go for a tandem hang gliding flight but was told they had just won a law suit and would be back in operation in a month. After further investigation I found out that the owner of Raven Sky Sports, Brad Kushner, was no longer operating out of Twin Oaks and was in fact banned from the airport by the owners. I did get to fly with the current club that exists at Twin Oaks and am considering taking lessons with Midwest Aerosports next season. If you call Raven Sky Sports, be aware that Brad Kushner is not telling you the truth if he says he will be back at the Twin Oaks Airport. The current club operates there and gave me an excellent flight.