Almost in agreement with Heathrow Harry although I would argue that seats in Y were generally wider with a slightly better seat pitch than today. That may however be down to the fact that he and I flew on different carriers. For instance, I made quite a number of long haul flights on LTU's Tristar 500s in their original configuration. They were an extremely comfortable Y class experience. Later they added more and narrower seats which signalled the begining of the sardine age.