Greg Graham wrote: > If we reduce bearing point friction, won't we lower the > difference in tension between the two segments, thus > allowing less breakage? Very good point. A rational and plausible explanation of getting away with using the smaller wire. The shame is that the scaling formulas available today weren't when these instruments were designed, and too often still aren't being used today, to avoid building something on the very edge of the materials limitations in the first place. If not for very poor design, this discussion wouldn't have taken place at all. Ron N
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