> ...along with all of the friction points in the string system, as well, > particularly the front segments. With string tension, the pin is twisted > axially and in a diminishing amount of torque to the bottom of the pin > depending on the friction of the system in the block. The friction and > stability of the friction system of the counterbearing felt, > counterbearing contact, agraffe or capo will be additive to the > perceived "loading". Ron is exactly right that there is no way to tell > what twist component remains in the pin because of all of the above > complications. I think I'm interpreting what you're saying correctly, Ron. > > Paul Essentially, but conditionally, as you likely suspected. All the front friction points cancel with the relationship between what you do and what you hear, when you get an instant aural response from pin movement. This is the odds on norm, so front friction points can be mostly eliminated as a universal absolution of responsibility for most tuning stability problems. Those aberrant instances where pitch change doesn't correspond to pin movement because of the above mentioned friction issues belong in an entirely different category of dysfunction from typical tuning cause and effect issues, and aren't therefor available as a mainstream "not my fault" dodge. For the most part, we do, we hear, and we sign off on the result. The "not my fault" from front friction thing is entirely real in some instances, and a monumental pain in the ass when encountered, but it isn't especially extant in most instances, though typically invoked first as an excuse. That leaves the more prosaic balancing of pin back torque to string tangential tension effect as the primary issue in producing a stable tuning - reluctantly skipping over the back scale. It's really pretty simple, eventually. <G> Ron N
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