Warren received the full tour of the basketball facilities when he visited on Aug. 4, but at the time the North Carolina players were home on break. This return trip was centered on time with the team.
Playing on the Dean E. Smith Center floor with the preseason No. 1 squad, Warren felt like he more than held his own.
"It was fun - I did very well," he said. "I was just trying to get buckets out there. It was fun running with the guys; it was some good competition. I matched up with Reggie (Bullock)."
Warren also met again with Roy Williams, who reiterated UNC's desire to bring him in first and foremost to be a scorer.
"I sat down with Roy," he said. "They are basically telling me that they want me to come in and do what I do best, score the basketball.
"I'm really happy about what he said. It's pretty much everybody's dream school and I think I could go there and play basketball and do what I like to do the most."
How did the return trip impact Warren's feelings about the Tar Heel program?
"I feel good about them," he said. "It's a very good, traditional school. Everything about the school and the atmosphere is good and their fans are amazing too."
This past week Warren, who is now ranked No. 22 in the 2012 class by Scout.com, announced the five schools he plans to officially visit -- Florida, Georgetown, Kentucky, North Carolina and NC State -- and he's begun to match some dates with campus visits.
The plan remains to be thorough and methodical about the process and thus not rush a decision.
"I'm just trying to visit each school and get as much information on each school when I visit," Warren said. "Where ever fits me and my family [is where I'm going to go]."
Warren will head off to New Hampshire in just over a week, to begin his senior season at Brewster Academy. But before he does, he plans to head back to UNC's campus yet again to meet up with his Brewster teammate, Mitch McGary, who will be taking an official visit to UNC.
"Me and Mitch are real close," Warren said of the highly recruited post player who has vaulted to a No. 2 ranking in the senior class. "He's coming down Tuesday, Wednesday and Thursday, so I'll be chilling with him. I'm going to go hang out with him up there next Tuesday."
Warren and McGary have three schools in common on their list - Florida, Kentucky and North Carolina - and the two have discussed visiting schools together, and ultimately playing together in college.
"We definitely talked about that," Warren said.
Warren is also working on setting up an official visit with UNC, but he's waiting to get to school before settling on a specific weekend.
"As soon as I get up to Brewster and get my schedule we are going to start talking dates."