Cuber, I said that I find (and that's my personal experience, which may or may not have any similarity to anyone elses' experience) that Yamahas are tonally less flexible than the horns I prefer to play - Martins, Mk6, Conn, King, Buescher. I've owned Yamahas. They are great saxophones. I just can't get the sound and response that I want out of them. I guess I just don't know how to play them. You have to go with what works for you, and for me, it's not Yamaha. Big deal. Mouthpiece matching: Some horns are more adaptable than others. With most modern mouthpieces on modern horns, one won't have too much problem. Vintage horns though, are a different animal, because they were designed differently. The soprano, by nature of it's small size, is more prone to intonation tendencies caused by mouthpiece mismatching than a tenor. It's still a very flexible instrument though,and the player can lip it all over the place to make it play usually. If you have intonation issues, like, a flat upper register, are bothering you, you can either find a different horn to match your mouthpiece, or find a different mouthpiece to match your horn. Mouthpieces are cheaper.