How Do I send User Created Post From One Wordpress To Another?

Hey guys, the user sync plugin is Baller! I love it and it works very good. Another question however, on a multisite lets say a users creates an article, and I want that article for a custom post type to be published on a different website under their username, how would I make that possible?

So really, when they publish a custom post type which is GTCD articles, it will publish to their multisite website and Our main website which is not in the network but on the same dedicated server.