The concept of this approach is to divide FSX into a number of flying zones so as to minimize the impact from too many addons installed onto the system.  Therefore, a number of corresponding fsx.CFG are created.  This not only allows customzing fsx.CFG for each flying zone but also makes subtle fine-tuning possible according to actual performance resulted from each scenery.

So, instead of having only ONE My Best FSX Setup, I am actually having EIGHT as shown in the table below.   The matching fsx.CFG will be loaded via the BASIC command when a zone is selected.

Next post regarding the BASIC program will be the last of the series.