Never broke any bones,just the useral bumps,bruses,and sprains,mostly from down wind landing in comps.Had several malfunctions on the PC.The ram airs are less malfunction prone since the invention of the slider.PC's have softer opening shock than a square.Every body shortened PC lines at least 24"by 1966!! For faster/stable turns and less malfunctions.Most of my PC jumps were on a deployment bag not a sleve.POP D-47