When publishing services to ArcGIS Server using arcpy it does not provide the ability to set service parameters. Please expose all service parameters so they can be automated for service deployment. This should include the basic things like "overWriting" a service as well as enabled or disabling capabilities and parameters.
Provide arcpy classes, modules or methods to allow a complete arcpy publication solution and similar workflow to the Desktop publication workflow.
We should not have to resort to xml or file based hacks to publish services in the same manner as Desktop. Support will not provide examples on modifying the SDDraft and the documentation does not even mention this limitation or ability so a solution needs be provided.