Hi Rick - I trust you are up to no good?
That was the reason I mentioned no correction - aside from what you would have to do to sort the nose dropping problem. I can see the thinking that if the engine is going to fail it would be in a high power change situation, but I have had 2 in the cruise before now, and one in the hover taxi! Go figure.
Personally I wouldn't go for speed at all - depending on the machine, and if I got the collective down quick enough (you would only need the speed for a flare to bring the RPM up). In a 206 (or similar), you might not have enough control power to move the disk anyway, as it might not be loaded enough to produce the force you need. A 412/407/AS 350 would be a different story.
Scrawny - the check is there to protect the gearbox mountings as I understand it - on the 407, the check is simply a pause.
Dennis Venturi did an article about this in Helicopters mag a few years ago. He was using the principle of dynamic stall (as mentioned by NASA) where a quick pull up on an aerofoil produces a tiny vortex that moves from the leading edge to the rear and keeps the airflow to the surface (this is presumably why retreating blade stall doesn't flip the machine over). In other words, you can go beyond the basic stall for a second or two if you haul everything in at once. He reckoned that in a 206, it would produce about double the lift.
Phil