gmax to FS9 scale problem

Is there a quick and dirty way to ensure that models/scenery you create in gmax (or import into gmax from Autodesk VIZ) will be at the correct scale when you export them to FS9?
Flight Simulator and other chat
https://forums.simviation.com/phpBB3/
https://forums.simviation.com/phpBB3/viewtopic.php?f=16&t=37437
Also, if I create a model in gmax with the units set to feet, then switch the units to meters just prior to exporting, shouldn't that automatically export the model at the proper scale?