but everything else should be replicated exactly, I believe?
I didn't suggest that it couldn't be done .. however the sim is just a big PC with fancy bells and whistles hooked up. Unless the programming logic addresses a given situation and is validated by FT data ... it must be presumed to be of questionable validity.
For instance, going back some years ago, I was instructing on a 732 box. Post the rudder problems, the FAA mandated that US carriers had to use a box with an updated set of data. As it happened I was last man standing and did some before and after fidelity checks on the particular box .. chalk and cheese, I have to say.