The discussion in the Hotfix 4 thread about ILS, magnetic variation and how the ILS beam is not aligned with the runway in ADE got me thinking again about the difference between runway headings displayed in MSFS versus ADE. This obviously isn't enough difference to be attributed to magnetic variation, but it is enough to be annoying. Taxipaths from the runway onto a taxiway start at the runway centerline and parallel the centerline a short distance before the taxiway turn-off. The ADE display of the runway and the MSFS generation of the runway do not coincide close enough to use the ADE display as a guide for these paths. Therefore, it is necessary to position an aircraft in the sim on the runway centerline, displayed in ADE, to place a guideline showing the centerline's actual location. ADE accurately displays the runway location (center point) relative to what displays in the sim, but the heading is often not accurate. The discrepancy is usually a few hundredths of a degree. An inaccuracy in how the runways are drawn in the sim, so there is no ADE solution?