Hello stephanepage!
I was reading up and looking around the forums and I found that you were looking for a way to all sites on a multi-site setup with a few changes per site owned by sally, chris, etc.
I noticed that you solved this and are automatically updating all the content!!
How did you manage this!! I need to do this for a client of mine, and I only can find the replicator and only doing it for brand new sites.