Have a look on my web . There is an explanation of the PAR file, with all the paramaters and there functions. By changing these parameters, you can increase/decrease control movements, engine power etc. To change these parameters, simply open the PAR file with a editor like Notepad.

There is also a PAR File Designer software for download where these parameters can be more easily changed.

Furthermore, you can also go to the FMS Forum with any FMS related questions.

Not to bad for a free SIM...