Hi Fred,
No, it is all addon scenery that is on my drive "G" not the default. I do not use the addon scenery folder in the MS FSX folder at all.
Incidentally, I have made a measurable improvement both in loading times and also in the rendering of graphics by using several scenery.cfg files. I have one for the UK, one for Western Europe, Spain etc, When I go for a flight I move the appropriate cfg file to the Program Data\Microsoft\FSX folder before hand, but you can actually do it on the fly (

) by simply changing the file and then doing a scenery refresh, which only takes about 10 to 15 seconds on my system.
Norman