Hi David When the strings where on we used one of those metal- thingys with two leveled 'legs'. One leg on the sounding part of the string and one on the part of the string that rested on the bridge. If you can wip it, it tells you that you got positive downbearing. If it stands firmly on the string, it tells you that you either have zero or negative downbearing. As for asking our instructor, we did. He couldnt come up with any better theory than we did with the cast iron and soundboard actually getting compressed between the cast iron pins and the tuning pins, increasing the positive or negative crown of the soundboard, altering the downbearing. I suspect that even though it has alot of negative downbearing right now, when the strings are off, it would get back to what it was (positive) before removing the strings, if we restrung it and tuned it. > Hello Daniel - > > At this point I would ask you how you went about taking downbearing > measurements. The rest of your question seems to reflect some basic > confusion which might be best addressed by your instructors. Thanks, Daniel Lindholm / Sweden
This PTG archive page provided courtesy of Moy Piano Service, LLC