Hi Steven,
The Bluthner had a modern action. I played it extensively, and frankly, did not bond with the aliquot strings. Even after letting off the pedal, the piano continued to ring for several seconds. I did not care for it--as Mozart once said, "Silence is the canvas upon which music is painted." It's hard to get a moments silence with a Bluthner.
I prefer a clear, articulated style, with judicious pedalling. Even when playing Debussy (who apparently loved Bluthners), I felt as if I constantly had the sustain pedal depressed. And playing Beethoven or Mozart, the piano felt oppressively muddy. Just my opinion.
I ended up buying a very pristine 1982 Yamaha C7. Quite a difference, but I felt it would best answer my needs for a wide variety of repertoire. Also, it plays pp and p with ease, something Richter loved about it. Only downside: we almost died moving it up a flight of stairs. A very heavy instrument!
Anyhow, thanks much for your comment.
Glenn