Does anyone know if there is a difference between using the sdelayer -o load_only_io command versus the arcpy.management.RemoveSpatialIndex() function. I would like to know if there is anything else going on in the background with load_only_io mode. We are running several Spatial ETL tools and I want to improve performance during the loading of the data, but don't want the spatial indexes to get rebuilt at the end of any of the Spatial ETL tools. I am confident the sdelayer command would work, but if the arcpy function is identical, it is much simpler to write a script tool that only uses the arcpy module versus the subprocess module. I am not sure what can trigger the spatial indexes to be rebuilt. I want to control when that happens.