<DIV>Hi John</DIV> <DIV> </DIV> <DIV>I have used pitch lock with great results.be sure to follow the directions that come with it.There is no change in tone.   Don <pianotuna@accesscomm.ca> wrote:</DIV> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Hi John, A single tiny drop of glue in the middle of the string is all that is required. I don't think that unless it were pointed out that anyone but another *very* careful technician would see it. At 12:38 PM 02/02/2005 -0600, you wrote: >How many have tried using Pitchlock couplers to reduce v-bar duplex >noise? What are the results? I have not tried it, but know that muting >the strings off with felt has an adverse effect on the tone. > >It has been suggested in the past that a drop of glue on this portion of >the string will change the mass of the string just enough to correct the >problem. I've had success with this, but I sure don't like to show >anyone the messy appearance. > >John Baird Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. Non calor sed umor est qui nobis incommodat mailto:pianotuna@accesscomm.ca http://us.geocities.com/drpt1948/ 3004 Grant Rd. REGINA, SK, S4S 5G7 306-352-3620 or 1-888-29t-uner _______________________________________________ caut list info: https://www.moypiano.com/resources/#archives </BLOCKQUOTE>