Spec,
Thank you for taking time to give a detailed reply. Appreciate it. I have had bad experiences with USCIS before. I have a long immigration ( read struggle ) story
I have a PhD and have published papers and have a few conference proceedings as well. However, I am not in academia. My EB2 NIW petition was rejected in 2007 based on the number of citations though they agreed that my work was in national interest ( I worked on designing levees after Hurricane Katrina in Louisiana ). This is not a field ( atleast my specialization) where you publish a paper and get 100+ citations. Having said that, I have few other friends who tell me that some of their friends got approved in EB1 with even less number of papers published and modest citation record. I guess it was just my luck

. I have an approved EB2I petition with a PD of July 2009( with no I-485 filed yet - unfortunate again ). So, I have nothing ( except the money

) to lose here. I wanted to do my research and give this a best shot if I qualify.
I don't know anyone who used the Diplomate certification for immigration purposes. As I said, there are only a few hundreds of people in US who have earned it and I guess most of them would have gotten their GC before reaching the 10 year experience mark
I wouldn't worry about this EB1 if I had atleast an EAD. I am looking to see if this can be a backup option if CIR doesn't go through ( which is where it is probably heading to ) and if there is no end to the waiting game. I love what I do but the whole immigration battle has made me feel that I should have probably chosen IT and gotten into those consulting giants and get a GC through EB1C.
As a side note, when do you think my PD of July 2009 has a chance of being current

? With this new trend of moving PDs only in the last quarter, I cannot hope to get my GC even if I get current and that would be one more year added to the wait.
Thanks!!