I'm not sure what to call it but I have shown 3 recent players how to throw it and the disguise is excellent. Here is what I think is happening (I have no high speed film to confirm). Basically just bring your hand around the outside of the ball and try to push it off your thumb and index finger. Your hand move around the ball in kind of a flip position but there is no effort to impart backspin like the floating flipper.What do you think it is lhowser...a horse shoe change?