I think the original question had more to do with the systems simulation then with the flight model. I too would be interested in hearing from real world 767/757 pilots other than Eric Ernst (he seems a bit prejudiced :-)) just how good (or close) it really is.
For a somewhat involved discussion about difficulties and limitations with FS2K flightmodels goto:
http://www.avsim.com/cgi-bin/dcforum...ForumID8&omm=0
regards