One difference is that the blued pins can be touched up later in the piano if they get marks from installation; the chromed ones cannot, if they chip. "Reverse threads" were a salesman story, as far as I know, to imply a ratchet effect, with more torque in one direction than another, and thus tuning stability. Makes no sense when you may have to turn a pin either way to tune it. Welcome to these forums, Kendall! I've been impressed with much of the material on your website, including these pages: http://www.pianofinders.com/services/pinspection1.htm http://pianofinders.com/educational/touchweight.htm --Cy-- ABQ, NM -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/caut.php/attachments/20080707/a019d3c1/attachment.html
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