Sorry to see that this thread is deteriorating into the old BOAC versus BEA debate which some of us tried to leave behind in the 70s.
There was a significant difference in the training philosophy of the ex components of BA. BEA philosophy on conversions was to teach at the beginning of the course and gradually withdraw support with progress. There seemed to be more of a "You prove to me you can do it and I point out where you go wrong" approach from too many trainers on the other side - which some short haul candidates (used to a different approach) found intimidating and confidence-sapping.
For what it is worth, I came to longhaul in the twilight of my career and found it much more relaxing than hectic four (sometimes five) sector days in Europe. And yes - that did include Lagos as well as JFK and O' Hare etc.
Pilots are much of a muchness wherever - so let's give the tribalism a rest.