Hi,
Yes, I am referring to my own building footprints in the same coordinate system as the basemaps (Web Mercator Aux). My State Plane building footprints project on the fly and appear correct. I want to store them in the proper coordinate system and eliminate projecting on the fly.
I have two enterprise geodatabases. One is for day to day business uses (State Plane NAD 1983). The second is for publishing maps, apps, and mobile data collection (Web Mercator Aux WGS 1984).