I have another concern as well: I have a brick wall ancestor from PA and found that the records pre-1850 for PA are not only incomplete but most (if not all) the immigration records are useless. I use Ancestry for pre-1840 research and have found its records incomplete and poorly indexed. For example: Looking for John Wilson, immigrant from Ireland, approximately 1790. When looking through PA immigration records, there are records but all they list is the name and year, of immigration, no other identifying info, so no way to place them with the proper John Wilson. Sometimes they will give an approx. date of birth year, but nothing else. I'd been told years ago, by a professional genealogist that there was "some kind of major error when transcribing records in PA, and it cannot be fixed.." Although she didn't elaborate more, I wonder if this is part of the reason they don't want to release them?