Not sure if this applies to the DFW scenery, but after I edited the AFCAD's from the FSDTs Hawaiian scenery #2 package with Lee Swordys program, the default buildings started appearing (not good). After removal, and a reinstall, all looked good again. I then edited the AFCAD's with ADE, and the default buildings remained hidden, where they should be. Hope this helps with your decision.
Jim
PS---you may have to load the "stock navaids / waypoints" and load "stock approaches" when using the ADE program. Umberto would know best on this I think.