How is the altissimo range with the JodyJazz?
Fantastic! It’s one of the great features of the mouthpieces, because when a mouthpiece is designed properly and made well it should allow you to play all over the instrument. Having said that, there is no shortcut to altissimo. You must start with harmonics and learn how to play these notes properly. If your reed is too soft altissimo is more difficult. I recommend Sigurd Racher’s book, “Top Tones for Saxophone”, or working on altissimo.