Axtremus,
You are right, both pianos were rebuilt. Maybe it's just the refinement of a master piano technician that the new Steinways lack. So, as a word to the wise, if you buy a new Steinway, send it to be rebuilt by someone good! Building pianos is definitely an art, not a science, and I distrust the result of any piano manufacturer that has the different tasks of the production processed so isolated and specialized as Steinway. I would much prefer a working-alone craftsman who can take real pride in making a piano sound the best it can possibly sound, and can treat my piano with love. If the appeal of cookie-cutter pianos is stronger to you, just buy a yamaha, lol. I might add here that the Hamburg Steinways seem much more well made these days and the actions in general are much superior, as well as the soundboard design (it sings more).
BTW: I was at the Van Cliburn from the first note to the last, and the pianos did not seem too bright in the hall. Well, except when Sa played, but she is just monstrously strong and really played unbelievably loudly. In fact, I think that the pianos were voiced up, perhaps, to be heard better in the cavernous, echoey, swallowy Bass hall, and the players that could not produce enough sound were the ones first eliminated. Most players chose the Hamburg Steinway or the Van Cliburn New York Steinway, and only a handful or less chose the New York Steinway that was sent straight from the NY showroom for the competition.... Maybe it was still too new