Max Johnson chose to use his final season of eligibility to play for Mack Brown at North Carolina, his third school in five seasons. After completing a full spring with the Tar Heels, Johnson compared his experience so far in Chapel Hill to the first few months he spent at his previous two stops, LSU and Texas A&M. “I’d say it’s very similar,” Johnson said after North Carolina’s spring game last month. “My Spring game was a little different at A&M, just because we did so many special teams beforehand, we did 7-on-7. We didn’t do that today just because we didn’t have a lot of guys healthy at t…