I was just about to ask something similar, so I'll piggy back here.
Is it safe to assume that for both to work fine, the FSDT scenery needs to be listed at a lower number (higher level) than Megascenery?
I ask because I'm in the middle of an FSX install, and was going to purchase MegaScenery Nevada and California to go along with FSDT's LAX and LAS sceneries that I already have.
So am I right there, or did I miss something?
BL.