Well, Ridge Soaring Gliderport (Knauff& Grove) in PA used to have a Duo
Discus, don't know what the current story is. Then there's Harris Hill
Soaring in Elmira NY which has ASK-21s. Both may be a bit further than
you wish to drive, but it's worth going someplace that isn't just going
to stick you in a 2-33. If you're going to do it, do it right.