I'm just starting out in FSX and wanting to do gliding. I have found some gliding scenery addons at Simviation. I have FSX and was planning to use CumulusX - But these scenery packs suggest they add thermals already. thus are they compatible or redundant if CumulsX is used? Are there other benefits of these scenery sets besides the thermals? Also the one I found for my home region BC Canada is FS2004 - will it work with FSX Acceleration? Also from the discussion above I am curious if I have to turn the Native Thermal effects OFF when using CumulusX so that the cumulative superposition of the native thermals and the effect of the flight dynamic dont become unrealistic - or is that taken into account already?