Broc asked me to summarize my findings here, in the original post. So here goes.
Brad Penn as a brand was acquired by D-A Lubricants approximately two years ago, and we as consumers should be seeing the "new" Penn Grade 1 products within the next month or so. I was informed of the following regarding Brad Penn and its switch to Penn Grade 1.
-The formula hasn't changed
-Penn Grade products are still being produced at the old Kendall refinery in Bradford, Pennsylvania
-1500 ppm zinc, 1400 ppm phosphorus