He wanted to learn more on a personal level, so he called the staff and asked if he could take an unofficial visit Monday, and 12 hours after it began, it ended.
After a few long, informative conversations with the coaching staff, including Scarlet Knights coach Greg Schiano, Lumpkin left campus close to 11 p.m. Monday, then spoke about it Tuesday with ScarletReport.com.
"I never got a chance to actually see the whole school," the 6-foot-8, 275-pound Lumpkin said as the reason for his trip. "All the schools in my top 10, they were a school I just saw. I went to the spring game, and I saw them practice at a (spring) practice, but I wanted to see them academically. I think it's a good school there.
"Everything went good. I learned a lot of things. Their practices are intense and they really get after it."
Lumpkin said one of the highlights was an in-depth conversation with Schiano.
"He was telling me about their program and asked me to play for him and all that," Lumpkin said. "He said it would be a good fit."
Lumpkin named a top 10 – Rutgers, Wisconsin, South Florida, South Carolina, Pittsburgh, North Carolina, Michigan State, Illinois, Georgia (no offer) and Florida (no offer) – last month, and added it remains intact.
He also said the reason for the visit was not to make an immediate decision.
"Oh, no. I wasn't going to commit," said Lumpkin, who acknowledged frustration about the rumors. "I wasn't going to commit."
The visit to Rutgers came on the heels of a weekend trip to Pittsburgh, another school in his top 10.
"Everybody was together and the (Pittsburgh) coaching staff is great," he said. "They do a lot of coaching and teaching at the same time when they're practicing. It was really good."
Lumpkin's summer visit schedule is now done since St. Peter's Prep begins training camp Wednesday.
He remains uncertain when he will make a decision, but wouldn't rule out an announcement before his season begins. One of the issues is whether Lumpkin will make a decision before taking official visits.
"I'm not sure. I can't take them until after the season," he said. "My coach doesn't really want us taking official visits during the season. He wants us to concentrate on the season and at the task at hand."