As I suspected - the best advice is to not touch the cyclic from those heights. There's no need, and you're not going to get enough forward speed for any flare to have an effect on your flight path.
Lower the collective and be ready to pull it all the way to the top as you get close to the ground.
But the important thing is to know what the symptoms of the engine failure are, and react without question.
Most folks who've had engine failures in helicopters were more than just a bit surprised at the failure, regardless of where the failure happened. I know for the three I've had, they were all very unexpected. So don't expect the normal indications - know what the real symptoms are (yaw, sinking feeling, etc.) and don't depend on horns and lights.
An extra half-second of time will make all the difference in terms of surviving.