You can work with the export settings. You can get good quality out of direct exports.
I have not done it, but requests for an option in PR CC to do a "save as CS6" resulted in the recommendation to use the export as XML (or some such). I think this is used to get projects into FCP.
So try that as a way to get your PR CC project into PR CS6.
Or like some of us, just stick with CS6 and use dynamic link.