Only had to HIFR once in anger in a Sea King, - when the boss (Pilot) of the Sqn I was flying with decided that he knew better than the Observer on the radar and took us to the wrong ship using ESM that had a flight deck too small for the mighty Sea King to land on. Only drama was that we didn't then have enough fuel to get either back to 'mum' or to the correct ship that we could have landed on. Luckily in this case the ship (type 42 I think) had good fuel pumps. Sometimes you had to hover below the level of the flight deck as the ships pumps wouldn't pump up hill faster than you were burning it! When the flight deck height was 15 feet, made for some fun hovering in rough weather.