We have pages of theories and counter theories, but no one has mentioned the basics. There is no argument about lowering the collective in the event of engine failure but plenty about the subsequent action ie. cyclic aft, forward, maintain attitude, all we need is shake it all about and we have a full house.
Why don't we just say "control the aircraft". With the engine failure and a lowering of the collective there is going to be an element of yaw, roll and pitch, the response will be to correct the attitude which will require a correction in roll and pitch and of course yaw. This should be instinctive now the thought process begins, do I need to slow down, accelerate or turn. The aircraft is now stabilised, what you do with the cyclic now depends on speed or lack off to set up the EOL.
Having had three, one of which was at night this worked for me.