When I was in High School they made me run the 100 and 220 in track to increase my speed to play linebacker. I was a 230lb 4.7 and they wanted me faster. I can tell you from experience that carrying weight jumps on you at the end of a sprint. Charlie is 190+ lbs now which is big for a sprinter...or at least the ones I've seen him sprint against. I don't think it's a valid assumption that he is slow to start and fast to finish....I sure wasn't that way. Regardless, he won the sprint championship in his HS region, in Georgia where there are a lot of fast kids. I think that qualifies him to have the speed to play in the SEC.