Hi Sivam,
I received my 2nd FP notice on 06th May scheduled for 17th June. But, I did not get it for my wife at the same time. Eventually, I got her notice on 17th May scheduled for 29th June.
Now, I am thinking to go for early FP. But, normally, in Detroit, they do not entertain. I am still planning to go there and try my luck (I am not sure if this early FP is going to do any good unless they really open the file processing for RFE/Approval).
I will let you know my experience.
Keep in touch.
-sk