Despite his size relative to others in the group, Knox, a Concord (N.C.) product, didn't appear out of place during position drills or one-on-ones.
"This experience shows me the competition that's out there and tells me I need to work even harder," Knox said.
Earlier in the month, Wake Forest became the third school to offer Knox a scholarship, joining Louisville and North Carolina.
Knox says he's still "leaning towards" UNC, his childhood favorite, and adds that his decision timetable is becoming clearer.
"I don't really have a time schedule for [a decision]," Knox said. "But some time probably in the fall [I'll make a verbal commitment]."
In the meantime, Knox will continue to make unofficial visits.
"I want to explore all my options to check out other schools," Knox said. "I don't want to be based all around Carolina. I want to see what other schools have to offer, because every school is unique and you've got to respect their abilities and what they have to offer."
Knox, who recently visited Louisville, doesn't have any upcoming visits scheduled, but is working on his summer camp schedule. Clemson, UNC, NC State, and Tennessee are among his camp destinations.
Knox, who has continued to stay in regular contact with UNC assistant Allen Mogridge, says he hasn't felt any pressure from UNC to rush into a commitment.
"I respect that they're not trying to push me into committing," Knox said. "They're letting me take my time and find where I'm most comfortable at and where I feel I can go."