On the question of Rudder Boost. In the real aircraft in the event of either a flameout/failure or reducing thrust by power lever, the rudder boost only moves the rudder pedal about 50mm. It's more of a "push this one" than any meaningful rudder force in terms of aerodynamic usefulness. Even at zero thrust or autofeathered you still need full rudder deflection and if you are going to hold it there for any more than about 30 seconds, you'll be needing full rudder trim as well.
I have noticed over the years there is a difference in pilot handling and one can tell those you have practiced a V1 cut verses those that havn't almost immediately.. The V1 cut pilot, rotates, applies full rudder, selects gear up, checks power and trims. Fly the body angle restore the heading. Where autofeather has worked normally there's nothing left to do until cleanup altitude which will take a few minutes.
Those pilots who have not trained for a V1 cut, execute the excercise after the gear is up. These pilots tend to hold the rudder force without rudder trim for the whole of the engine failure drill, particularly where the examiner restores thrust immediately after the initial drill is completed.
In my humble opinion, there is no substitute for good simulator training in a good simulator with an instructor that knows his ****.