I was a lowly C cat instructor with 622 in the late 60's. Ron Hayter's final task before retiring was to check me out. TP was the CO for the rest of my time. The only winching incident I remember, apart from a Chipmunk flying into the cable, was when a MkIII drifted outside the airfield boundary on the launch. The winch driver did his best to pull in the cable before it fell outside the hedge.
About 15 minutes later a car came onto the airfield and the driver rather apologetically complained that the parachute had removed his wing mirror. We thought that the best response was to have a whip round and pay for a new one.