Andre, et al; While the S&S Technical Reference guides are of tremendous value and extremely well presented they are *not* absolute regulation "specifications" and using them as such will create just as many perplexing problems as they might solve. One of the most frequently used words in these thingees is "approxiamtely", followed closely by "within the range of" and then "as originally set". The guide itself tells you that it "outlines *procedures* and general information" and continues by saying that "Understanding the relationship between the action and keyboard will help in providing indivdualized service to the piano player." Pianos, and specifically S&S pianos, are individuals and deviating from the optimum designed specifications is absolutely normal and to be expected for the maximum performance of any given instrument. When viewed as "absolutes" *any specification* will get in the way of optimum performance...but when viewed as a "guide or starting point" such nebulous thingees as "approximately" are extremely helpful. The "ultimate" regulation comes when we approach what the "designer" desired and not in what the "engineer" tries to require. Just my take. Jim Bryant (FL)
This PTG archive page provided courtesy of Moy Piano Service, LLC