I have several Da's in various states of restoration. I have noticed that several of the large heavy springs part @ 1000-40 are of varying height.
is ther a specific height for this spring. Dowes a shorter height one mean they are worn. I am thinking this because we measure valve springs on a piston aircraft engine to determine if they are within height spec. They seem to generate the same resistance, just differing heights. Any wisdom on this out there.