My alto and soprano saxes are artist level silver Jupiters. For the soprano, I am using the stock mouthpiece that came with the instrument, and I am using a student conn mouthpiece that came with my first Alto. I only use the Jupiter stock mouthpiece on the alto when I want to do things in the altissimo register. I play on a size 3.5 Java alto reed and a 3 rico soprano reed. I tried to play on a size 3 traditional vandoren soprano reed but It was way to hard for me. Also, I am getting a zhenghao mouthpieces for both my alto and soprano. (I don't think that was a really good decision). Recently I have had some intonation problems and I have tried to buzz into my mouthpiece but my pitch fluctuates continuously. How do I get better control of my pitch so I can improve my overall intonation?:?