The class of 2014 junior from Theodore (Ala.) High was back in town for A-Day on Saturday, and despite his familiarity with the culture of Nick Saban's program - he still came away impressed.
"It was a great day, I had a great time," he said. "It was nice being back on that campus and in that atmosphere."
It wasn't just the amount of people in the stands or the play on the field that took Mosley back, it was how things were getting done at this stage of the spring.
"All of the coaches and the players are not complacent just because they won a championship last year," he said. "They feel like they haven't won anything yet.
"It's amazing how they keep bouncing back."
The coaches that impressed the 6-foot-4, 195-pound Mosley during the game also took some time to speak to the rangy defender.
"I talked to Coach [Kirby] Smart and Coach [Lance] Thompson," he recalled. "Then I met with all of the players in the locker room.
"They're still recruiting me as an outside linebacker. My main goal is to keep adding weight to my frame."
Amid all of the recruiting and spring game festivities, younger brother took some time to check out how big bro was doing.
"C.J. did pretty good," he said. "But he was kind of limited because of that shoulder."
Mosley is still seeking offer No. 1, but is excited since things "are starting to kick off" with the entire recruiting process.