Win - We practiced it a lot in single engine airplanes, specifically, the T-34C...the IP in the back would pull the engine to a torque setting that simulated a dead/feathered engine and say "engine failure...where will you land?"...and we intrepid young naval aviators had to establish the best glide airspeed, pick the spot and evaluate our energy all the way to the threshold of the runway (or field), when the IP would power up and take the airplane back.
If you know the numbers by heart, know the pattern, and practice it, adjusting for wind each time, you can get pretty good at it...