With a strong familiarity with the campus and program, the focus of Robertson's stay was on the spring game where he evaluated the defense as well as former teammates.
"I was impressed with the quarterbacks," said Robertson. "There are two quarterbacks that they have there [Joe Dailey and Cam Sexton] and one of them [Sexton] came from my school. So I really wanted to see how they were going to compare together.
"They had a real good defense – the defense impressed me a lot."
In addition to watching the Tar Heels' spring game, Robertson showed his guests around the campus and spoke with members of the North Carolina coaching staff.
Once considered such a strong UNC lean that he contemplated committing, Robertson has since taken a step back in his recruitment, but still includes the Tar Heels within his short list of favorites.
"They're in the top three now with South Carolina and N.C. State," said Robertson. "[Things have evened up, because] I got a chance to see other schools and they impressed me a lot, too."
In addition to his various trips to Chapel Hill, Robertson has unofficially visited both N.C. State and South Carolina, and is in the process of working on visits to Clemson and Virginia Tech – his two newest offering schools.
Over the summer, Robertson will more than likely camp at both North Carolina and South Carolina.
A Scout.com four-star defensive end, Robertson owns offers from all five aforementioned schools. The 6-foot-4, 220-pounder missed all but three games his junior season with a knee injury, but still totaled 11 tackles and three sacks.