Turn a body over on the surface it rests on instead of carrying it — pinch two opposite walls LOOSELY and off centre so the pads act as a pin joint, lift so the surface and gravity stand the body up on its own edge, then press it onto the surface and pull the pins toward you about whichever edge is grounded until it is just past balance, and let go. Use when a rigid grasp cannot transmit the torque a full roll needs (a parallel jaw rolling about its own closing axis), when the body is too big to turn over in hand, or when the arm's envelope cannot follow a held body through the roll.
