Having my first attempt at making scenery in FS 2 I have completed all of Ireland and most of the UK courtesy of Bing satellite images.
However the default "soup" in FS 2 draws a load of white cloud cover over the sea in some coastal areas.
The quick fix I found to remedy this is using Aero Scenery select Bing Maps, select Grid 9 Large, then slide the image detail slider over and select Level 13 19.109 M/Pix and Generate AFS level tick ONLY Level 9.
In the works tick to complete the scenery. Each square will only take about 1 or 2 minutes to complete. Then in the newly made map folders delete the folders leaving ONLY the ttc folder.
Place the map folders in a new folder I call mine "UK WATER MASK CORRECTIONS" and add it to FS 2.