Hmmm? Two in one day! Yikes! To assume that each piano, of the same model, etc., has exactly the same speaking lengths, etc., is truly FOLLY. This is the problem of using other known data from "similar" pianos. Although Travis's work was to be admired, in it's effort and scope, the whole concept is flawed. I discovered this years ago. ( I have two copies of the Travis Book. Anyone want one? It'd be yours for the cost of shipping!) Since that time, I have made it a policy to do a "Scale Evaluation" of every piano that comes to my shop, without exception. Many have been "Re-scaled". Whereas, a few have retained their original scale. (This is definitely "a few"!) Most that did retain their original scale, were, without exception, pianos from very high end Manufacturers, made during the hay-day of manufacturing. In regard to today's two requests, the Yamaha would very likely be a candidate for using other known data, as they manufacture to such tight quality control standards. I suspect, it would be OK. However, when we go to all the trouble to re-string a piano, aren't we trying to make the piano BETTER? If your answer is yes, then it behooves you to SERIOUSLY look at "Scale Evaluation" and then possibly, "Re-Scaling". Then you will have a scale that is "Custom" unto that piano's various foibles and idiosyncrasies. Thus, making the piano BETTER. A side benefit to all this, is that you can have some control as to how your Bass Strings are made and to what tolerances, etc.! If the Bass is not right, it's just a pyaner. Allowing String makers to pick and choose, to their various whims, is also FOLLY. (IMHO)<G> Best Regards, Joe Garrett, RPT, (Oregon) Captain, Tool Police Squares Are I
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