Manfred Radius does a type of aerial ballet with smooth, rolling maneuvers with smoke generators on the wing tips. To finish his show, the few times I saw him, he has a typical limbo type ribbon atop two poles held by volunteers. He makes a diving high speed pass in one direction and goes under the ribbon. It might be 25 or 30 feet high. He then pulls straight up, and when his speed falls off, drops the nose over forward, dives straight down, pulls out inverted, then cuts the ribbon by pushing the nose away from the ground, and cuts the ribbon with the sailplane's V type tail feathers. It has to be seen to be fully appreciated. The he pushes negative back up for more altitude, rolls back upright, and turns a short final for landing. Real pure example of energy management!
Type at you later,
Dan McEntee