Not sure when the people you know were jumping but I've heard a few older (non-military) guys at drop zones complain about shoulder, back and hip issues from harder openings with the rigs they used in the '90s and early '00s.
Parachutes are typically sized according to weight to manage rate of descent, so the extra weight shouldn't be an issue. Given the context I wonder if the military just calibrates around faster rate of descent because it's risky to stay in the air too long.
Parachutes are typically sized according to weight to manage rate of descent, so the extra weight shouldn't be an issue. Given the context I wonder if the military just calibrates around faster rate of descent because it's risky to stay in the air too long.