Question to the community and @MelitaKennedy regarding "projection on the fly". Projection on the fly is magic. However, I've had many colleagues over the years apply this projection on the fly magic concept to copying features from a feature class in a projected coordinate system (PCS) and pasting them directly into a feature class in a geographic coordinate system (GCS). Both feature classes have the same underlying datum. In my mind, copying features from a feature class in a PCS and pasting them directly into a feature class in a GCS seems wrong, yet I'm having trouble proving or disproving why it's wrong. I am hoping