I get the speed vs technique side of the position, and his recovery isn't bad, your right, but to survive as a CB in our conference or beyond, if you are going to rely on technique over speed you need to have great recovery time. His instincts are top notch when it comes to tracking the ball carrier, even in a scramble, and he is indeed a very physical back. I, however, do not see him beating out TKJR and McNeil at safety, which I agree is the better fit for Gaulden at the back end of the defense. By the time those players leave, he could very easily be recruited over by faster, more athletic players in the next three classes, and he won't play beyond a back up role at a safety position for three years.
To address the LB weight, he's weighing in at 180 his soph year and at least 185 his junior year. Your right, by the time he gets on campus, he might be looking at 205 already. With that kind of backed up situation, I could just as easily see us taking too few LB this class, and redshirting Gaulden and putting him at WILL weighing at 215. He drops from what looks like a 4.54, 4.55, to maybe a 4.64 and he STILL is fast for a OLB. Takes advantage of his instincts, and puts an extremely athletic player with coverage skills and a physical nature at a position of need.