We have a some users running the CALDav Synchronizer (from caldavsynchronizer.org) to sync their Contacts list.

When the account credentials are entered to the app, it detects the Contacts list and sets up the connection, but we've noticed it is set up as Read Only-- presumably because it detects the Global Address List as part of the Contacts list.  Because GAL is Read Only, it "appears" to set up the entire Contacts sync as Read Only, which would mean even non-GAL contacts would not be read-only.

Is there a workaround to this?  

Quite a few users on this particular domain are struggling with MAPI sync issues, and have opted to go back to IMAP plus CalDav/CardDav.  But the Contacts sync isn't working out as expected, and I'm hoping for some good tips we could pass along to the afflicted users.