List, On the use of the three legged guage #16397 in APSCO's catalogue, or similar type guage, I can see how to determine positive or negative downbearing. But how much is enough, I can see how using a feeler guage, allows you to compare sections. Is there a table available that gives the information, as to what the minimum and maximum should be? The other question, it seems some people measure the speaking length and some the other. What is correct? Regards, John M. Ross PTG Assoc. Windsor, Nova Scotia, Canada.
This PTG archive page provided courtesy of Moy Piano Service, LLC