So I need to ask, did you try this horn before you bought it? If so, didn't you feel that it was uncomfortable then? If you didn't try it, then that was a big mistake all the way around. How would you know if it was a suitable instrument? Intonation, ergonomics and the build quality all being important. Personally, I've owned at least one alto of every major brand of saxophone over the years and I've never had an issue with the neck angle. Jupiter is one brand I haven't tried, but I would assume that like most modern brands it's design is based on the MK VI. But that's just an assumption not a fact. You may want to take it to a tech to make sure it's not bent.