I just returned from tuning a Baldwin grand with the Achoo-dust pins. This piano was last tuned about 7 months ago, by me. It is a sanctuary piano for a middlin' sized Methodist church so the A/C is set at 85 degrees in the summer, 50 in the winter, then upped or downed just for Sunday and Wednesday services. No Dampp-Chaser installed. It is always remarkable stable. Today, no strings was more than 4 or 5 cents off, most were within a cent or two (measured!)--some sharp, some flat--and there were quite a few that I took for freebies as they were dead-on. So I don't think the hitch system has any direct bearing (no pun intended) unless someone has messed with the plate screws or the hitch-height on the pianos you're talking about. Have others complained about stability in these pianos? Maybe the Methodists and I are just lucky. Speaking of that, they have an ooooold Acrosonic spinet in their choir room, tuned annually. It is a rock of ages for stability. I swear, a dishonest person could breeze in there and spend about 10 minutes on the unisons, charge for a full tuning, and split the scene. I think they'd get away with it for years and years! Darn thing sounds good, too, and has very little wild and/or wooly strings. Man, they were the only ones to get the spinet "right" ... a few of these should be dissected in the lab to see what makes them so different. Alan Barnard Salem, Missouri > [Original Message] > From: Andrew and Rebeca Anderson <anrebe@sbcglobal.net> > To: Pianotech <pianotech@ptg.org> > Date: 08/19/2005 12:37:09 PM > Subject: Accu-just hitch pins and tuning stability > > Any old-timers out there with hints on making these more stable? The > two in my customer inventory both needed huge pitch > corrections. They were more work than most other pianos I work > with. Maybe I need to adjust my hammer technique a little. I will > suggest keeping them in tune for greater stability. Ie. major pitch > correction, 2 months regular tuning, four months regular tuning, then > every six months etc. Any other ideas to add to the mix? > > Andrew > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives
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