Bill, Thanks for all of your comments in your email! I didn't understand your comments about stability. Would you please elaborate a bit about doing the bumps. > A word about tuning stability. Test blows are useful, but you'll find much > more about how those string tensions lie by giving a quick bump sharp and > flat to the wire this side of the speaking length. Of course whatever the > pinblock torque is the string friction has to be below it. If the > relationship between pin and string friction is right, a quick bump up and > down at the tuning pin and quick observation of how the speaking length > changes for the bump in either direction will tell you how well balanced the > tension diferential across the friction barriers (duplexes ridges, capos, > etc.) with respect to those friction barriers. If the bump sharp produces a > greater change in the speaking length than the bump flat, the saftey margin > on the sharp side is slimmer than on the flat side, and the pin needs to be > rotated one degree and 15 seconds flat (leaving it of course torsion-free). > You'll know you're centered when the change is the same in either direction. Thanks! /Allen
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