Syncing RT Calendar app with multiple Google Calendars

I have multiple Google calendars (a mixture of public and private) that I have set up on my Google account. It seems like the Calendar app on my surface only grabs one calendar from my Google account, which is not good enough. I remember having to jump through hoops for my WP to get Google to send multiple calendars through but the same hoops did not work for my Surface (it basically involved going to http://m.google.com/sync on a mobile device and checking the calendars to sync).

So, does anyone know if this is possible?

I also tried adding the Google calendars one-by-one as subscriptions to the Outlook.com calendar but apparently Outlook.com does not support private Google calendars and would never sync.