Selmer Signet tenor note problem

[retiredmilitary]

I am having a problem with my note G with octave key, it sounds like a train coming through town, I am using a Brilhart #4 mouthpiece with a 3 1/3 vandoren V16 reed, i have tried moving the mouthpiece in and out a bit, changing embouchure pressure but nothing seems to help, any suggestions would help.

thanks :(

[sam_2d]

that note is just very shaky on tenor.it dosnet seem to do tht on any other saxophone but tenor. you should try just taking in a little more mouthpeice