回复：What about my chances to be granted with EB1-b?

Your case is ok, if you have 3 year of research experience in the same field, that will help.
I applied for EB-1A by myself and it got my I-140 approved within 3 months.
My strong background is to review manus for several journals, editor and editorial board of american journal, invited to write and publish review for distinguished international journal. Invited to speak at international meeting but did not attend. Referee for biotech company, but I do not have a permanent job. NSC is objective, and you should prepare for your documents and petition letter objectively. If your English is ok, do it by yourself.
Don't worry, and you will get it. Good luck for all of you.