The athlete had said multiple times that USC was the school he grew up rooting for but in the end, he followed his gut and will play his college ball at Duke.
"That's really what it was, it was a gut feeling that pushed me to Duke," Petite said. "It was the hardest decision I ever had to make and I was going back and forth every day. I loved being at USC last week and had a great time at the camp.
"I really wanted to see how I meshed with the players because I fit in really well at Duke. I got to go out with some of the guys and really loved it. This was nothing against USC at all, I loved the place. If I decided last week after the camp, it probably would have been SC but that's why I wanted to take a week off and really think hard about this.
"I didn't want to make an emotion decision so I just kept thinking about where I thought I would fit in the best over the next four year of my life and finally on Saturday, I felt like that was Duke. The next day I woke up and it was still Duke. That's when I knew that was the place for me."
Petite said he felt a lot of similarities between Duke and his H.S. at Campolindo.
"Campo is just like Duke in so many ways," Petite said. "We're not a big football powerhouse but we always find ways to win games because of how tight we are as players and I got that same sense at Duke. Both are great academic schools and I have the same family feel at Duke that I have at Campo.
"I have a real good relationship with Coach Faris and I love Coach Cutcliffe. He's an incredible coach and what he has done in a short time is incredible. I know he's not going anywhere and I like that long term stability I know I'll have there."
Petite said making the call to USC to tell them he was headed elsewhere was incredibly tough on him.
"I really like Coach Helton and Coach Tui (Tuiasosopo)," Petite said. "They're great guys and like I said, USC is a great school. It was the hardest call to make but they understood and wished me well.
"I know my decision probably surprised a lot of people but I really feel good about it. It has been three or four days now and I haven't had any second thoughts yet. That's when I knew it was the right thing for me to do. Duke played for the ACC Championship last year and is definitely headed in the right direction, I'm very excited to be a part of that."