I noticed building footprints in Web Mercator Auxiliary Sphere projection were off by roughly 3 inches when draped on ESRI basemaps. However, when I publish the building footprints from the native coordinate system (NAD1983_2011 NY State Plane) it successfully projects on the fly and the footprints sit nicely on ESRI basemaps. I'd really like to continue using my datasets dedicated to web maps (Web Mercator Aux) and correct the shift occurring with this data.
When I take my data from my parent dataset(s) in NY State Plane to the child in Web Mercator Aux I am getting a transformation that isn't complete. I just wanted to throw this out to the community and see if anyone had a suggestions for me.