I'm working on a SharePoint 2010 to SharePoint 2013 migration. Initially, we weren't going to migrate mysites and just create a new one. After the migration it became clear that some people were using a lot of stuff on their old mysite and they wanted it back.
We've already created the managed metadata and UPS for the new site.
How can I migrate the old MySites into the new one? Should I scrap the MM & UPS and start over with a proper MySite upgrade or can I back up and restore the old sites to the new one?