I do GA flights using FSEconomy mostly in the southwestern US and Rockies but occasionally they take me to places east of the Rockies or into coastal California. Suppression in the mountains can be a totally different animal once you start flying into Kansas or near the Pacific. Is the update suppression altitude above sea level or above ground level? Can it be altered while flying?

Hi,I believe AGL so you should be OK!Hope this helps,JimActiveSky Sales and Supporthttp://www.hifisim.com/images/asv_dev_team.jpg http://www.hifisim.com/images/asv_proud_supporter.jpg