So I used GSA relentlessly for approximately 60 some days. I had my setting set so that it would directly build back links to the main site using a combination of 10 variations of one key term, using branded instances, long tail variations ect. My setting also included no links from any site below PR2. You can see the image below how this worked. I then stopped that campaign for approximately a week or so. I then Built 4 High PR site links from My network. You can also see the results below in the image.