Wingnut's Art of Longboarding talks about a sitting pop-over that helps getting through white water where you would normally turtle roll. He starts by raising the nose of the board above the incoming whitewater. As it hits the underside of the nose, he lunges forward and grabs the rails ahead of the board's midpoint and comes down the back side of the wave.
Does anyone use this? I see myself getting knocked backward with a painful groin.

