Hey Johnny. I am comparing my Tenor saxes, My Hawk (which is only a couple months old) and my Vito tenor, an older 70’s model. I have been making an effort to consistently play long tones as part of my practice. When I play my Hawk I noticed some differences. When I play my low A#, A, and G, a couple of things happen. First I notice some fluttering that goes on while holding the note. Secondly, the note changes octaves without me hitting the octave key. I am conscious of this and try reshaping and changing my mouth. Sometimes it is a little better but still has a tendency to do those things. While I play the older Vito, the notes seem smoother and this doesn’t happen. There are some times on the Vito that I have some fluttering but I feel that’s related to my loosening of my mouth. While I play other notes on the Hawk sax, the octave changes and fluttering doesn’t happen. I read a previous post about looking for a second octave key, I don’t see one on the sax. Any suggestions? Thanks a bunch!