Syncing Google Contacts
Some time ago I syncing my contacts from the old Address Book app to Google. However, as some point the syncing between Address Book/Contacts and Google Contacts got disabled. So now I have contacts up there have not been updated in a long time. I would like to be able to sync my contacts from Contacts to Google without having them all be overwritten, which would mess up my Google + circles. So what I'd like to know is what is the best method to sync my contacts from iCloud, which are in Contacts, to Google and have the Google Contacts be updated and any new entries added with the least disruption.
MacBook Pro, OS X Mountain Lion, 15'' 2.3 GHz Intel i7 (early-2011)