I received the similar requests from CSC regarding my eb1 a few days ago (but my eb2 NIW, filed together with eb1, was approved in about 3 months). As you guys, my lawyer actually prepared the cover letter based on the list. My situations are 20 papers in us and international jouranls (all middle-ranked journals in my fields), about 60 citations, 6 reviews for journals, and one grant as PI, several memberships. I do not know what to do. Maybe I just give up my eb1 and use my eb2 for the i-485.