The problem was only significant on four-engine types with both props feathered on one side. On the landing flare when the live engine throttles were closed (Viscount for example), the aircraft would yaw into the live engines because of the discing of the props and especially when they went into ground fine. It is a non-event in a light twin except it is a good thing to ensure both throttles are fully closed at the flare. In other words the throttle of the engine previously set slightly open to simulate zero thrust, should be fully closed at the flare.