Seems like what Sukoikid was doing was a Lomchevak and not a waterfall anyway. If that is what he was doing with the controls and he is flying a sukoi than I'm sure that is the correct stick movements to get the Sukoi to do the lomchevak. And if he were to move the sticks to the upper left most position it would tumble a few times and than it should go into a inverted flat spin, at least that's what mine does.