that won't help, the sax was made like that with that neck so it won't be down to the neck.
if it's not intonation then you just need to either get the neck recorked or get a longer shank mouthpiece, or jsut a new mouthpiece in general.
if it's not intonation then you just need to either get the neck recorked or get a longer shank mouthpiece, or jsut a new mouthpiece in general.