Pat Dye, the former AU coach and owner of their current recruiting cabin was an AA OG and LB at UGA in the late 50's at 185lb. I am surprised Curry was 250lb in his playing days. Kids have just gotten so much bigger faster and stronger today. I understand the excitement of a big kick return, but the size and speed of they guys now it's almost like getting hit by a car. Kicks and punts is spring games are dead for a reason, and it isn't because coaches don't want big returns.
Todd Gurley was an amazing kick returner, he returned probably 6-8 kicks while at UGA, 3 went for TD's but one was called back. He was 240 lb guy with college sprinter speed with elite vision. The reason he didn't return more often was he was too valuable to the offense to risk him getting hurt returning kicks.