Dear List, I GIVE UP! I've been trying to help a customer of mine who bought a cheap Kranich & Bach (made in Europe, 1993, sold by Baldwin) 42" upright. This piano had double striking or bobbling hammers when I first saw it. To be brief and to the point; I added let-off distance and dip, still some bobbling on soft blows, added more, still bobbling at times, then I added key height/dip, adjusted checking, and unless you are VERY deliberate and get to the very end of each key stroke, IT STILL DOES IT occasionally. Maker won't help, they said (basically) that's what you get for buying a cheap piano. Now, the piano is no fun to play and you still get the occasional bobble if you're not careful. I have come across this problem hundreds of times over the years and have always been able to regulate it out, but I can't seem to get this one to stop without regulating it out of the comfort zone. I remember some Samicks and Yamahas in the low tenor had this problem due to the angle of the surface on the butt where the jack contacts. Any ideas? Thanks very much! Lance Lafargue, RPT New Orleans Chapter Covington, LA. lafargue@iamerica.net
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