Try Schnabel/Sargent/L.S.O., I have it on 78. I agree with Perahia recordings, always have a lowest common denominator feel to it(which is why the critics like it so much), and Bilson always sounds flat to me too.
As for the Staier/concerto koln mozarts, I really like the interaction and general conception, but the string tone I'm finding is pretty ugly, and not "real", but there are plenty of things to like about it.
As for the Staier/concerto koln mozarts, I really like the interaction and general conception, but the string tone I'm finding is pretty ugly, and not "real", but there are plenty of things to like about it.