Quinn didn't stop there, either. He constantly shined during the multi-day camp in Baton Rouge, burning quite a few big-name DBs in one-on-one drills -- and garnering praise from coaches and other prospects for his routes and overall athleticism.
"It was crazy," Quinn said. "I didn't know I was going to run a time that fast. I was shooting for around a 4.4. I've usually been in the 4.5 range. I've been training since baseball season, and I put in the work six days a week to prepare for LSU's camp.
"I didn't come into the camp with the mindset that - 'I'm going to be the best one there' - but I was prepared. I had been running routes with McNeese State wide receivers, and working on getting in and out of my breaks."
"My work paid off during the one-on-one's," Quinn. said. "I was able to get off press coverage at the line of scrimmage. Coming into the camp, that was something people were questioning: Whether I could get off the line.
"I put a lot of effort into route-running. Once you perfect it, you can put extra spice in it."
Quinn talked about getting an offer from Tigers coach Les Miles last Wednesday.
"I was speechless," he said. "It's always been a dream of mine to play for LSU, which is the No. 1 school in the nation. I was sitting there in the office with Les Miles. My dad got a little emotional after I got the offer and teared up.
"I want to thank him for everything he's done for me."
Quinn added an offer from Texas A&M last week. Will he make a decision at a certain time?
"I want make 100% sure before I decide, because once I do commit it's going to be over. It's going to a done deal once I commit. I won't decommit after I pull the trigger."
There's speculation that Quinn could be a first-round draft pick in the Major League Baseball Draft coming out of high school.
"That's interesting, but my heart is in football," he said. "I like baseball, but it's going to come down to where I want to play college football.
"There's no comparison to playing football in front of 100,000 screaming fans. I love playing football on Friday nights, and I want to play on Saturday nights also. My first thought is football, football, football."
Quinn had an exceptional sophomore year at Barbe, which has a great chance at contending for the Class 5A state championship with Quinn joining returning starters Desean Smith (4-star tight end and LSU commit), Courtney Galentine (top 2013 sleeper at running back and wide receiver) and Kennon Fontentot (2014 QB and also a great baseball prospect).