Just to share my experience with Cr1/Ir1, I've been approved at USCIS on December 8th and on December 15th I've submitted every document needed and it took exactly 32 days to get DQ, on January 17th and on the same day I got the email from NVC saying that they're going to work with the embassy in Paris to schedule an interview.
The million dollar question is, how long until they schedule an interview in Paris?!