Hi,
I saw the same with ORBX's freeware field. There the CGL file is around 600MB of the total of 700MB the scenery is large. (= 85%).
In EDLP the same total 3,85GB, CGL-file -> 3,40GB (= 88%).
Hope there will be found a more compact way to make the CGL-files in the future when the SDK is more mature, because on this rate, we sure will run out of diskspace very soon. :-)
Marcel