>>I don't see any relationship to vertical hitches here either.??? >>Ron N Sorry if I wasn't clear. This probably won't help. I sat in on a class by Del Fandrich and he was talking about using the vertical hitch pins with the groove at the top to hook the string around. He gave as a reason to improve the flexibility of the backscale especially in the bass. The groove allows the string to pivot up and down with the vibrations. A postive backscale angle will impede bridge movements up more than down. Vice versa for a negative angle. A zero backscale angle will have equal impedance in either direction. As I said, I am only speaking out of what seems intuitive to me. -- Dean Dean May cell 812.239.3359 PianoRebuilders.com 812.235.5272 Terre Haute IN 47802 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech_ptg.org/attachments/20081123/f6b3bf65/attachment.html>
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