> Joe: > > "Thin spots" are "necking" of the string and lead quickly to breakage > since necking happens only when one reaches to or beyond the elastic > limit (Young's modulus) of the string. Yup. >It's why I don't use wire rollers, too! Generally, one has to think in the range of 300 cents > overpull to reach breakage (a minor 3rd). I don't use a roller for two reasons. First is the very likely probability of bridge cap damage. Second, the roller exists on the erroneous belief that wire stretches in the long term, and over stretching it in the short term will stabilize it. >In my opinion, there is never > any good reason to overpull strings by any more than 20-40 cents; even > 100 cents is excessive. Likewise. Ron N
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