<div>Oh! Wim, if you do tune/work the back scale--not just straighten and tap--while stringing, my apologies for the wording that looks as if i assumed you didn't do this. It was a temporary assumption. I think they call that a postulate before the theory. I'll find out when I finish my engineering degree. </div> <div> </div> <div>Keith Roberts<br><br> </div> <div><span class="gmail_quote">On 4/18/07, <b class="gmail_sendername">Keith Roberts</b> <<a href="mailto:keithspiano@gmail.com">keithspiano@gmail.com</a>> wrote:</span> <blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"> <div>Now this is why I think Wim was having probs with a newlyrestrungD. If you don't tune the back scale or make sure the strings render when stringing then as Ron just said the string render at random times. Maybe a year or two or three later. </div> <div> </div> <div>On another list about backscale tuning, I remarked that I just try to smooth out the sound and tension of the back scale and asked whether it would be better to raise the raise the pitch of the backscale or lower it in comparison to the front scale. I got no answers. From what Ron says here, I think taking the hammer shank and making sure the backscale pulled up to tension+ in the stringing process is essential. Then as the wire stretches, the backscale won't render through after tunings. Since the rendering does this randomly with humidity swings and applying the principle of "going halfway there never gets you there" even if you are already halfway there, logically it must mean the tuning stability sucks. </div><span class="sg"> <div> </div> <div>Keith Roberts<br><br> </div></span> <div><span class="e" id="q_1120510df69f9b18_2"> <div><span class="gmail_quote">On 4/17/07, <b class="gmail_sendername">Ron Nossaman</b> <<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:rnossaman@cox.net" target="_blank">rnossaman@cox.net</a>> wrote: </span> <blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"><br>Hi Fred,<br>Consider that if the string can be moved up and down the pin<br>by cap dimensional changes, the friction between string and <br>pin is overcome in small increments to allow it. As the string<br>moves up or down the pin, the differing segment tensions will<br>take advantage of the momentary friction respite, and the<br>string will also render across the bridge somewhat. This <br>happens at odd intervals as long as the cap thickness is<br>changing, which is most of the time. Nothing ever stands still<br>as long as there are changes in temperature and humidity, so<br>nothing ever quite reaches equilibrium. <br><br>Ron N<br></blockquote></div><br></span></div></blockquote></div><br>