Very interesting. I used three different zips (core of city, South end where we used to live, West where the new developments are happening) as subsets and the City name overall. There are just under 100 preparers listed, and the first does over 13k returns. The next few are slightly over 3k, and on down. Love the reject data, because I work with or support a bunch of CPA/EA offices. Beyond seeing the wreckage after a bad filing, I never really knew who does what quality of work.