Has anyone every thought of creating some sort of addon/plugin for the NGX in which the longer you fly the specific plane, the wings get dirtier? It could read the .hours file for the specific reg and if somehow it could read any kind of Active Sky file like other addons do to detect the type of weather you were flying in. I'm not sure how complex this would be, specifically the weather part, but I feel it would add an extra point of realism to the aircraft. Just a thought I had tonight.