<HTML><HTML>I have noticed for many years that many= yamaha verticals, even brand new ones, have bobbling hammers, around the ba= ss break, both sides of it, when played softly. Yamahas are certainly great = pianos in all other respects, but for some reason this is a pervasive proble= m. It is quite consistent, and not a consistent issue on any other brand tha= t I have come across in 20 years of servicing pianos. I am curious if anyone else has noticed this? Yamaha tech people told me, a long time ago, to weaken the damper springs. T= hat's alot of dampers to weaken! I wonder if there other reasons for this on= specifically new yamahas? (could be lots of reasons on older pianos) Peter RPT</HTML>