Quote Originally Posted by Ian Grant View Post
My 1913 Compur is more accurate than my modern Copals, Says a lot about German engineering and the strength of their springs

Most important thing to remember with leaf shutters is they need occasional use, that helps keep them running smoothly.

Same experience here... but interestingly they all produce reasonably similar exposure results. The amount of difference in accuracy/precision of well/properly maintained shutters isn't huge.