<html> <body> I've been maintaining a 4 year old D for this concert season at the local community college.  Almost every service I end up working on the treble bridge.  I've ultra-thin CA-treated the bridge pins to great benefit.  Closer investigation revealed that the persistent culprits had been victims of savage "string-seating".  Some were beating so wildly as to be practically un-tunable.  In desperation (concert in an hour) I treated one with gap filling CA glue.  It worked, but not without a price.  I've been planning to fix this bridge damage with a hard epoxy, selection process still ongoing (advice welcome and hereby solicited).  The string stopped beating but lost a little of its "sizzle."  I'm guessing that the CA isn't hard enough (or hadn't fully set).  Mind you, with the strings working in unison, I have more power after the treatment than before.  I've since done a few more that were obviously damaged.  I'm watching to see how they do long-term.  I don't see how I can re-cap the bridge with the plate still in.  Has anyone else tried to do this? There is a little beating throughout this section and it does seem to be impedance related (heavy object in contact with bridge ameliorates it).  Probably why there is so much bridge damage--an in determined string-seating by a predecessor.  I am planning to do some work with that after I get approval to hang brass under the bridge.  We have also discussed a "treble tone resonator" (Pianotek belly brace) for this as well.  I have thought that placing a heavy weight against the belly rail here might be a test that could confirm whether or not this part would be a useful addition.  They do want some audible demonstration of the advantage of the expensive part.  There is a lack of sustain and power in the fifth and lower sixth octaves. Overall the faculty is ecstatic with the improvement in the piano and I'm getting affectionate feedback that I must be nitpicking a little.  I guess it is only a Steinway. :-X Andrew Anderson </body> </html>