Yes, Ron you are right about the short duplex which I am not aware of. By the way, there are 3 terminating points-capo bar, hanging rod and plate before the tuning pins-all the way to key 88. Lim <blockquote type="cite">On 25-Mar-2012 7:01 PM, "Ron Nossaman" <<a href="mailto:rnossaman@cox.net">rnossaman@cox.net</a>> wrote: On 3/25/2012 5:19 AM, lim hock seng wrote: > > Tuned an Ibach F11 grand. It has a hanginging brass r... Which made a very short front duplex. Someone's been experimenting. I did something sort of similar on a Baldwin SD-10 a few years ago, shortening the front duplex to about 10mm. Worked great. Ron N </blockquote>