I have 4 New F1's and 1 F1n , they were all manufactured in different years and have never been adjusted and the light meters when checked with a 1° spot meter on a Kodak Grey Card are within 3/10th of a stop of each other, I understand one the reasons F1 meters are so accurate is because the light meter isn't in the mirror box it's in the front left hand side of the body which the team that designed it thought was a better place, Canon spent 10 years in research and development of the New F1 because they knew that they had to come out with something special to compete with the Nikon F2 which had been out about eleven years and the Nikon F3 that came out in 1980, at that time these were the premier 35mm professional S.L.R. in the World, and in my opinion they did. I have owned both the Nikon F2 and F3 in the past and although the Nikons are very fine cameras I consider The New F1 a better camera .
In conclusion, I don't know if the New F1 was the commercial success that Canon hoped for but I.M.O they produced one the best 35mm SLR's ever.