Thanks Desi81 for sharing your experience.
I am going to visit Washington DC next week if I don't get my SC by that time. I applied OCI and SC together and also sent separate $20 for each so they can send SC as soon as it's issued. From what I read on this post, many people received their OCI and SC together but SC was already sitting in Washington embassy office. Atleast with SC I can start entry visa procedure while OCI application is in process.
I just saw that now OCI tracker has added Passport number requirement to see OCI status
All the best.
Just give one suggestion that they should start sending the SC and Indian passport as soon as this process is complete. It will gove a lot of comfort to many people.