u/rewindsn

so I’m a high schooler, I play tenor sax, and I just made a big change in my setup as I’m going to be in top band and lead in jazz band. I got a new high quality yamaha sax, and switched from a Yamaha 4C for everything to a Rousseau 5R for concert band and a jody jazz 6* for jazz band. I usually use size 3 vandoren blue boxes for concert band and size 3 V16s for jazz band. I basically just got to try these things out and I sound terrible, my pitch is shakey, the new mouthpieces are hard to play on, and I squeak and go sharp a lot whenever I go into the higher octaves.

how do I get used to these two mouthpieces? I have all summer to practice for next year, I just need guidance